A company produces a range of 5 computers models which bring in high volume

Assuming that the factory works equally to produce models for 9 hours days 7 days per week, which monitor bring in the highest revenue

Answers

Answer 1

The model with the highest revenue is model D

How to determine the model with the highest revenue

From the question, we have the following parameters that can be used in our computation:

                                                   Model A Model B Model C Model D Model E

Time to manufacture (mins) (t)         15             18         13              20     17

% Of monitors sold  (s)                  75%          73%      84%        95%   81%

Cost per monitor (c)                     $175         $188     $145     $198     $170

The factor works 9 hours for 7 days

So, the total duration per unit time is

D = 9 hours * 7/t

D = 63/t

Convert t to hours

D = 63 * 60/t

D = 3780/t

The total revenue is then calculated as

R = c * D * s

So, we have

Model A = 175 * 3780/15 * 75% = 33075

Model B = 188 * 3780/18 * 73% = 28820

Model C = 145 * 3780/13 * 84% = 35444

Model D = 198 * 3780/20 * 95% = 35551

Model E = 170 * 3780/17 * 81% = 30569

The highest value above is 35551

Hence, the model is model D

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Complete question

Model A Model B Model C Model D Model E

Time to manufacture 15 minutes 18 minutes 13 minutes 20 minutes 17 minutes

% Of monitors sold per total products 75% 73% 84% 95% 81%

Cost per monitor $175 $188 $145 $198 $170

A company manufactures computer monitors. Among the various models are top

products, which bring high revenue.

Assuming the manufacturing lines are running for 9 hours a day for 7 days a week,

which model brings in the highest revenue?


Related Questions

What is the range of h Choose 1 answer - 4 <= h(x) < 6 The x h(x)-vabuc5-4.0.2.and 4 The x h(x)- sqrt 3 locs-4-2 2,4,and l; - 5 <= h(x) < 4

Answers

The range of h include the following: A. -4 ≤ h(x) ≤ 6.

What is a range?

In Mathematics, a range can be defined as the set of all real numbers that connects with the elements of a domain.

How to identify the range of this graph?

Generally speaking, the vertical extent of a graph represents all range values and they are always read and written from smaller to larger numerical values, and from the bottom of the graph to the top.

By critically observing the graph shown, we can reasonably and logically deduce the following:

Range = [-4, 6]

In mathematical notation, the range of this graph can be rewritten as -4 ≤ h(x) ≤ 6.

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steven makes a base monthly salary of $2700. as a vendor, be must sell $17000 worth of items per month. he also makes a 10% commission on all sales beyond the monthly quota. there is also an additional 5% bonus on top of the normal commission rate for any sales beyond $25000. if steven made $4800 this month, how much did he sell to the nearest dollar?

Answers

If Steven made $4,800 this month, the value of his sales for the month is $51,000.

How the sales value is determined:

Steven's base monthly salary on sales of $17,000 = $2,700

First sales commission above $17,000 sales = 10%

Second bonus commission above $25,000 sales = 5%

Total earnings for the month = $4,800

Commissions:

First sales commission = $800 ($25,000 - $17,000 x 10%)

Additional bonus commission = $1,300 ($4,800 - $2,700 - $800)

$1,300 = 5%

Sales above $25,000 = $26,000 ($1,300/5%)

Sales value = $51,000 ($25,000 + $26,000)

Thus, we can assert that Steven generated Sales of $51,000 to earn a total of $4,800 for the month.

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WILL GIVE BRAINLIEST AND 30 POINTS IF SOMEONE HELPS

Answers

The variables are x = 1/2 and y = 5/3

How to solve for the variable x and y?

From the figure, we have been told 21x = 5x + 8. So let's solve for x.

21x = 5x + 8

21x - 5x = 8

16x = 8

x = 8/16

x = 1/2 = 0.5

Using the Basic Proportionality Theorem or Thales’s Theorem, which states that "If three or more parallel lines intersect two transversals, then they cut off the transversals proportionally". We can say:

(20y-2)/(17y + 3) = (5x+8)/(21x)

Substitute x = 0.5 and solve for y:

(20y-2)/(17y + 3) = (5(0.5) + 8)/(21(0.5))

(20y-2)/(17y + 3) = (10.5)/(10.5)

(20y-2)/(17y + 3) = 1

20y-2 = 17y + 3

20y - 17y = 3 + 2

3y = 5

y = 5/3

Thus, the variables are x = 1/2 and y = 5/3

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Aaron just accepted a job at a new company where he will make an annual salary of $52000. Aaron was told that for each year he stays with the company, he will be given a salary raise of $3500. How much would Aaron make as a salary after 6 years working for the company? What would be his salary after t years?

Answers

Aaron would make $73000 salary after 6 years. His salary after t years will be 52000 + 3500t. The solution has been obtained by using the linear expression.

What is a linear expression?

The expression with the highest degree of one is a linear expression. This demonstrates that there are no variables in a linear expression with an exponent bigger than one. Such an equation yields a straight line on the graph.

We are given that Aaron has just accepted a job at a new company where he will make an annual salary of $52000.

Also, for each year he stays with the company, he will be given a salary raise of $3500.

So, let's formulate a linear expression for the given situation.

The expression comes out to be

52000 + 3500t, where t denotes the number of years

Salary after 6 years will be

⇒52000 + 3500(6)

⇒52000 + 21000

$73000

Hence, Aaron would make $73000 salary after 6 years and his salary after t years will be 52000 + 3500t.

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please help me with this problem!!

Answers

The details which describe the free African American who lived in the South is that they were counted as part of population statistics which is denoted as option D.

What is Population statistics?

This is referred to an an entire set of items from which you draw data for a statistical study while on the other hand, population refers to the people who live in a particular area at a specific time.

From the passage we were told that there was about 225,964 free African americans of which only 6 percent were free black people which made them less than those found in the North. They were counted during census which means that they were part of the population statistics.

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The two tables give the number of pints of blue and yellow that are used to make different amounts of two shades of green dye. Green #1 is made by mixing blue and yellow in a ratio of 2:3 2:3 . Green #2 is made by mixing blue and yellow in a ratio of 1:2 1:2 . Use the drop-down menus to complete each sentence below.

Answers

In the two highlighted rows show that for the same amount of yellow, Green #1 uses more blue than Green #2 and green #1 is bluer shade of green than Green # 2.

How to explain the table?

It should be noted that there are two tables which give the number of pints of blue and yellow that are used to make different amounts of two shades of green dye.

Green #1 is made by mixing blue and yellow in a ratio of 2 : 3.

Green #2 is made by mixing blue and yellow in a ratio of 1 : 2.

The first one has 2 parts of blue at 3 parts of yellow. In the two highlighted rows show that for the same amount of yellow, Green #1 uses more blue than Green #2.

In grade two the blue part is half of the yellow part. This means that green #1 is bluer shade of green than Green # 2.

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Consider the solid obtained by rotating the region bounded by the given curves about the x-axis. Y = 4 - 1/2x text(, ) y = 0 text(, ) x = 0 text(, ) x = 1 Find the volume V of this solid. V = Sketch the region, the solid, and a typical disk or washer. (Do this on paper. Your instructor may ask you to turn in this work. )

Answers

The volume of the solid is approximately 32π/3 cubic units.

The volume of the solid obtained by rotating the region bounded by the curves y = 4 - 1/2x, y = 0, x = 0, and x = 1 about the x-axis can be found using the method of disks/washers. The formula for the volume is given by:

V = π * ∫[a,b] (R^2 - r^2) dx

where R is the outer radius (4 - 1/2x), r is the inner radius (y = 0), a and b are the limits of x (x = 0 and x = 1), and dx represents a small slice of the solid.

Evaluating the definite integral:

V = π * ∫[0,1] (16 - x^2 - x^2) dx = π * ∫[0,1] (16 - 2x^2) dx = π * (16x - 4/3 x^3) evaluated at x = 1 - x = 0 = π * (16 - 4/3) = 32π/3 cubic units.

So the volume of the solid is approximately 32π/3 cubic units.

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Answers

There are five possibilities for whole numbers such that radical expression 4 ≤ √3 + √x ≤ 5: {6, 7, 8, 9, 10}

How to derive an integer for a radical expression

In this problem we have the case of a radical expression, from which we need to determine at least a whole number such that following inequality is fulfilled:

4 ≤ √3 + √x ≤ 5

This can be done by algebra properties. First, determine the limits of the inequality:

4 ≤ √3 + √x

4 - √3 ≤ √x

(4 - √3)² ≤ x

x ≥ (4 - √3)²

x ≥ 16 - 8√3 + 3

x ≥ 19 - 8√3

√3 + √x ≤ 5

√x ≤ 5 - √3

x ≤ (5 - √3)²

x ≤ 25 - 10√3 + 3

x ≤ 28 - 10√3

There are five possibilities for five whole numbers: 6, 7, 8, 9, 10

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Which descriptions and equations could be the function rule? Select all that apply.
The table in the attached image shows some of the input and output values for a function rule.

Answers

For the given table of values the equation that could be the function rule is option 4: y = 3x - 2.

What is a function?

In mathematics, a function is a unique arrangement of the inputs (also referred to as the domain) and their outputs (sometimes referred to as the codomain), where each input has exactly one output and the output can be linked to its input.

The table of input and output values are given for the function.

The slope-intercept form of an equation/function is - y = mx + b

To find the slope m use the formula -

(y2 - y1)/(x2 - x1)

Substituting the values in the equation -

[-2 - (-11)]/[0 - (-3)]

(-2 + 11)/(0 + 3)

9/3

3

So, the slope point is obtained as m = 3.

The equation becomes - y =3x + b

To find the value of b substitute the values of x and y in the equation -

-11 = 3(-3) + b

-11 = -9 + b

b = -11 + 9

b = -2

So, the value for b is -2.

Now, the equation becomes -

y = 3x - 2

The graph is plotted for the function.

Therefore, the equation is y = y = 3x - 2.

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Find the area of this circle. Use 3 for T. A = πr² [?] in² 26 in​

Answers

The Area of the circle, A is 530.66 inch.

Define area of circle?

An area of a circle is the amount of two-dimensional space within the boundaries of the circle. It is the region enclosed by a circle's circumference. The area of a circle can be found by using the formula A = πr2, where A denotes the area of the circle, r represents its radius, and π is equal to 3.1416. The radius of a circle is the distance from its center to its circumference. It can also be found by dividing the circumference by 2π.

Given,

Diameter, d = 26 inch

Radius, r = d/2 = 26/2 = 13 inch

π = 3.14 or 22/7

We apply all these above values in the formula, we get area of circle:

A = πr²

A = 3.14 x (13)²

A = 530.66 inch

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The size length of a square is 5x-7. Find x if the perimeter is 125.

Answers

If the size length of a square is 5x-7 and the perimeter is 125, then the value of x is 7.65 units.

What is perimeter?

The complete length of a shape's boundary is referred to as the perimeter in geometry. A shape's perimeter is calculated by adding the lengths of all of its sides and edges. Its dimensions are expressed in linear units like centimetres, metres, inches, and feet.

The length of the square is given as a = (5x - 7) units

The formula for the perimeter of square is -

P = 4a

The value for perimeter of the square is 125 units.

Substitute the values in the equation -

P = 4a

125 = 4(5x - 7)

125 = 20x - 28

20x = 125 + 28

20x = 153

x = 153/20

x = 7.65

Therefore, the value of x is obtained as 7.65 units.

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proviion of a weekend tay in ydney valued at $1,000 which included flight to the value of $300, meal to the value of $200 and accommodation to the value of $500, a a chritma gift in december 2022. need to calculate the FBT liability

Answers

the total FBT liability for this benefit is $329 ($700 x 47% = $329).

Fringe Benefits Tax (FBT) is imposed by the Australian Taxation Office (ATO) on certain non-cash benefits provided to employees. If a company provides a weekend stay in Sydney valued at $1,000 as a Christmas gift in December 2022, the FBT liability is calculated as follows:

The taxable value of the benefit is calculated by deducting the expenses that are not subject to FBT, i.e. $300 (flight) from the total value of the gift, i.e. $1,000. This leaves a taxable value of $700 ($1,000 - $300 = $700).

The FBT liability is then calculated by multiplying the taxable value, i.e. $700, by the FBT rate which is currently 47% (as of 2021). This results in an FBT liability of $329.

Therefore, the total FBT liability for this benefit is $329 ($700 x 47% = $329).

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Ex4: Write a polynomial function in standard form with the given zeros then graph the function: ( 2 pts)
x=-1,-1, 2,3

Answers

After setting f (x) = 0, solve for to determine the intercept(s) of. Set y = f(0) and then find to determine the intercept of. Choose test points to establish the sign of each interval on the axis after using the intercept(s) to divide it into intervals. Determine the test points.

How do you graph a polynomial function with zeros?

The Use of Zeros When Graphing Polynomials

You may graph a polynomial function using the steps below.

To assess how the graph will behave at its finish, use the leading-term test.

Choose the x− capture(s) of f(x) by putting f(x)=0 and then figuring up a solution for x .

Choose the y− a snare in f(x) by putting y=f(0) and discovering y.

Use the x− dividing intercept(s) x−

Divide the axis into intervals and then select test points to ascertain the sign of f(x) per interval.

the test points on a map.

To identify the general form of the graph, locate additional points as necessary.

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Which of the following best describes the number shown below?

0.535353..

Answers

Answer:

Hi, I'm Za'Riah! I will gladly assist you with this problem. (see explanation)

Step-by-step explanation:

1. Repeating Decimal

2. Rational Number

This is all I can think of at the moment.

Evaluate the expression.

(13+9)+37
=

Answers

Answer: 59

Step-by-step explanation:

(13 + 9) + 37

13 + 9 = 22

22 + 37

59

i need help. like... really need help.

Answers

The domain of the function graphed in this problem is given as follows:

{x | x ≥  -4}.

How to obtain the domain of the function?

The domain of a function is the set composed by all the input values that the function accepts.

On the graph, the domain of the function is given by the values of x.

From the graph of the function, the function has a closed interval at x = -4, and is defined for all the values for the right of that, that is, greater than -4, hence the notation for the domain is given as follows:

{x | x ≥  -4}.

Meaning that the correct option is given by the second option.

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PLSSS HELP IF YOU TULRY KNOW THISSSS

Answers

Answer: The answer is 7

Step-by-step explanation:

Answer: x = 7

Step-by-step explanation:

Subtract 7 on each side to isolate X

7 + x = 14

-7         -7

x = 7

Which is a correct solution for the following system of Inequalities

Answers

The solution for the system of inequalities is (-0.43,4.15).

What is an inequality?

An inequality statement in algebra uses the inequality symbol to illustrate the relationship between two expressions. A symbol of inequality has non-equal expressions on both sides.

We are given a graph on which two inequalities are plotted

First, we need to frame the equations from the points.

For the blue line, we have points (0,2) and (-1,7)

So, using slope-intercept form, we get the equation as

y+5x>2

For the red line, we have points (0,4) and (3,3)

So, using slope-intercept form, we get the equation as

y+0.33x >4

Now, in order to find the solution, we will subtract both the equations

On subtracting, we get

⇒(y+5x) - (y+0.33x) = 2 - 4

⇒y+5x - y-0.33x = -2

⇒4.67x = -2

x = -0.43

Substituting this value in the equation, we get

⇒y+5(-0.43) = 2

⇒y-2.15 = 2

y = 4.15

Hence, the solution for the system of inequalities is (-0.43,4.15).

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evaluate 1+(-2/3)-(-m) where m=9/2

Answers

To evaluate the expression 1+(-2/3)-(-m) where m = 9/2, we need to substitute the value of m into the expression and simplify it.

What is a mathematical expression?

Mathematical expressions consist of at least two numbers or variables, at least one arithmetic operation, and a statement. It's possible to multiply, divide, add, or subtract with this mathematical operation. An expression's structure is as follows: Expression: (Math Operator, Number/Variable, Math Operator)

1+(-2/3)-(-m)

1+(-2/3)-(-9/2)

Here, we have to simplify the inner expressions first,

-9/2 can be simplified to -4.5

1+(-2/3)-(-4.5)

Next, we add and subtract the terms:

1-2/3+4.5

Now, we simplify -2/3 by multiplying both numerator and denominator by -1:

1+4/3+4.5

Now, we add the fractions,

1+4/3+4.5

7/3+4.5

Finally, we get the value of the expression as

7/3+4.5 = 4.5 + 7/3 = 25/3.

So the final value of the expression 1+(-2/3)-(-m) where m=9/2 is 25/3.

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d. tickets to the zoo cost $25 for adults and $10 for children. the total ticket sales one day were $47,750. the number of children, c, who visited the zoo was 270 more than 6 times the number of adults, a, who visited. write and solve a system of equations to find the total number of visitors to the zoo that day.

Answers

The total number of visitors to the zoo that day=3980.

Given:

cost of each ticket for an adult=$25

cost of each ticket for an adult=$10

Total ticket sales one day=$47,750.

⇒$25+$10=47,750

⇒25+10=47,750-----(1)

Also,

c=6a+270

6a-c=-270------(2)

multiplying eq(2) with 10 we get:

60a-10c=-2700----(3)

Adding eq(1) and eq(3) we get

25a+10c=47,750

60a-10c=-2700

--------------------------

85a=45050

--------------------

To calculate a value just divide 45050 by 85 we get

a=45050/85

a=530

Now to get the value of c substitutes a value.

c=60(530)+270

c=3450

Number of Adult visitors=530

Number of children visitors=3450

Total Number of visitors=3980.

Therefore, the total number of visitors to the zoo that day=3980.

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A card is drawn from a standard deck and a
letter is chosen from the word
INCREDIBLE. What is the probability of
drawing a king then getting an I?

Answers

The probability of drawing a king then getting an 1 is P = 0.006

How to find the probability?

First we need to find the probability of randomly drawing a king from the deck, that is equal to the quotient between the number of kings on a deck and the total number of cards on the deck.

There are 4 kings and 52 cards, thus the probability is:

p = 4/52

Then we want to get a 1, the probability is computed in the same way, notice that now there are 51 cards on the deck because we already drawn one.

q = 4/51

The joint probability (first drawing a king and then a 1) is equal to the product between the individual ones.

P = (4/52)*(4/51) = 0.006

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the coefficients of the terms on the right side of a ___ equation are the numbers in the triangle.

Answers

The figures in the triangle represent the coefficients of the terms on the right side of a binomial equation.

Binomial Theorem: The expansion grows complex and time-consuming to calculate as the power rises. The Binomial Theorem can be used to quickly calculate a binomial statement that has been raised to a very high power. Find out everything there is to know about the binomial theorem, including its definition, characteristics, and uses.

An expression that has been raised to any finite power can be expanded using the binomial theorem. A useful expansion technique with applications in probability, probability theory, and algebra is the binomial theorem.

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3. Find the value of h.
h
2h
60°
30°
120°
15°
2h
h
(1 point)

Answers

The value of the variable, h is 60 degrees

How to determine the value of h

The properties of a trapezium are expressed as;

It is a 2-Dimensional shapeThe bases of a trapezium are parallel to each otherLength of both the diagonals is equalDiagonals of a trapezium always intersect each otherAdjacent interior angles sum up to 180°Sum of all the interior angles in a trapezium is always 360°

If the size of the angles of the trapezium are 2h, 2h, h and h

Then, it is represented as;

Add all the angles

2h + 2h + h + h

Equate the angles to the sum of the interior angles of a trapezium, we get

2h + 2h + h + h  = 360

Now, add the like terms

6h = 260

Divide both sides by the coefficient of h, we get;

6h/6 = 630/6

h = 60 degrees

Hence, the value is 60 degrees

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How many sides does a regular
polygon have if an interior
angle measures 150°?
n = [?]

Answers

The number of sides of a regular polygon with an interior angle that measures 150° is equal to 12 sides.

What is a regular polygon?

In Euclidean geometry, a regular polygon simply refers to a form of polygon which has all of its sides and interior angles being equal.

In Geometry, the sum of the interior angles of both a regular and irregular polygon is given by this formula:

Sum of interior angles = 180 × (n - 2)

Where:

n represents the number of sides of a regular polygon.

Similarly, the number of sides of a regular polygon with a given interior angle can be calculated by using this mathematical expression:

Interior angles = 180 × (n - 2)/n

150° = 180(n - 2)/n

150n = 180n - 360

180n - 150n = 360

30n = 360

n = 360/30

n = 12 sides.

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A rectangular rug has a perimeter of 240 yards. The width of the rug is 2 yards more than two times the length. Find the length and the width

Answers

The length of a  rectangular rug is 84 yards and the width is 36 yards

Let 'l' represents the length of the  rectangular rug and 'w' represents the width of a  rectangular rug.

The length of the rug is 12 yards more than two times the width.

So, we get an equation,

l = 12 + 2w

Also, a  perimeter of  a rectangular rug is 240 yards

We know that the formula for the perimeter of rectangle:

P = 2(w + l)

Using this formula the  perimeter of  a rectangular rug would be,

P = 2 × [w + (12 + 2w)]

240 = 2 (12 + 3w)

120 = 12 + 3w

108 = 3w

w = 118/3

w = 36

And the length would be,

l = 2 + 2( 36)

l = 84 yards

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The complete question is:

A rectangular rug has perimeter 240 yards. The length is 12 yards more than twice the width. Find the length and width of the rug.

What would the answer be?

Answers

Answer: AAS → Makes the most sense

- They give two angles and a side for both triangles

Step-by-step explanation:

Suppose you are trying to find your longitude and start looking for when the shadows are shortest at your house. You discover that this happens at 1:14:20 p. M. EDT (Eastern Daylight Savings Time). What is this time in GMT? Remember that EDT = GMT – 4. 2Points Be sure to show your work to earn full credit

Answers

Time in GMT is 5:14:20 P.M (GMT)

Eastern Daylight Saving Time is four hours behind GMT (Greenwich Mean Time).

The time on the Earth's meridian, or zero-degree line of longitude, is known as Greenwich Mean Time (GMT). This passes via the Old Royal Observatory in the London district of Greenwich on its way from the North Pole to the South Pole.

This is,

Eastern Standard Time is equal to Greenwich Mean Time plus four.

Therefore,

1:14:20 p.m. EDT (Eastern Daylight) will be equivalent to;

1:14:20 p.m + 4 hours (GMT)

5:14:20 P.M (GMT)

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The ratio of the number of Mimi’s Eminem cd’s to the number of Rita’s Eminem cd’s is 5:8. Rita has 18 more Eminem cd’s than Mimi. If Rita gives 22cd’s to Mimi, what will be the new ratio of the number of Mimi’s Eminem cd’s to Rita’s?

Answers

2:1 is the  new ratio of the number of Mimi’s Eminem cd’s to Rita’s.

What is Ratio?

A ratio is an ordered pair of numbers a and b, written a / b where b does not equal 0.

let Rita has X CDs.

Then Mimi has x-18 CDs.

x-18/x=5/8

8(x-18)=5x

Apply distributive property

8x-144=5x

Subtract 5x+144 on both sides

3x=144

Divide both sides by 3

x=48

Now Rita has 48-22= 26 CDs .

Mimi has 30+22= 52 CDs.

Required Ratio = 52:26 = 2:1

Hence, 2:1 is the  new ratio of the number of Mimi’s Eminem cd’s to Rita’s.

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determine if the given expressions are equivalent

Answers

Answer:

in order from top row to bottom row

NOT EQUIVALENTEQUIVALENTEQUIVALENTNOT EQUIVALENT

Step-by-step explanation:

4(2a + 7) = 4 (2a) + 4(7) = 8a + 28
NOT EQUIVALENT
7y + 2y + y = (7 + 2 + 1)y = 10y
EQUIVALENT
8m = 4m + 4m = 8m since -4m and + 4m cancel out
EQUIVALENT
9e + 2(e + 5) = 9e + 2(e) + 2(5)
= 9e + 2e + 10 = 11e + 10
NOT EQUIVALENT

Given:
f(x)=x²- 5x+7 and g(x)=3x² + 4x - 2
Find:
(f- g)(x)
(g-f)(x)
(f + g)(x)
Polynomials

Answers

The following are solutions to the given problems given f(x)=x²- 5x+7 and g(x)=3x² + 4x - 2;

(f- g)(x) = -2x² - 9x + 9

(g-f)(x) = 2x² + 9x - 9

(f + g)(x) = 4 x² - x + 5

What is a function?

A function can be defined as a relation between a set of inputs having one output each. In other words, a function is a relationship between inputs where each input is related to exactly one output. Every function has a domain and co-domain (range). A function is generally denoted by f(x) where x is the input.

The general mathematical representation of a function is y = f(x).

f(x)=x²- 5x+7

g(x)=3x² + 4x - 2

(f- g)(x) = x²- 5x+7 - (3x² + 4x - 2)

(f- g)(x) = x²- 5x+7 - 3x² - 4x + 2

(f- g)(x) = -2x² - 9x + 9

(g-f)(x) = 3x² + 4x - 2 - (x²- 5x+7)

(g-f)(x) = 3x² + 4x - 2 - x² + 5x - 7

(g-f)(x) = 2x² + 9x - 9

(f + g)(x) = x²- 5x+7 + 3x² + 4x - 2

(f + g)(x) = 4 x² - x + 5

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