Aaliyah and her children went into a bakery and will buy donuts and brownies. She must buy a minimum of 11 donuts and brownies altogether. Write an inequality that would represent the possible values for the number of donuts purchased, � d, and the number of brownies purchased, � . b.

Answer:

62.8 kg or 128.43 lbs

Step-by-step explanation:

if 18 percent of all the chocolate bars is is cashews at 11.3 kgs, the chocolate makes up the other 82 percent so theres a total of 62.78 kgs of candy total and you can use the eqaution for 1kg equal 2.205 lbs to find a total of 138.43 lbs of total chocolate bars

The required algebraic expression is x-3

An algebraic expression in mathematics is an expression which is made up of variables and constants, along with algebraic operations (addition, subtraction, etc.). Expressions are made up of terms.

Given here: The statement "A number subtracted from 3 "

Thus translating the given text we get the following:

Let the number be x

And we have have to subtract 3 from x

Thus the algebraic expression is given by x-3

Hence, The required algebraic expression is x-3

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The tin with 250ml is better value for money. The solution has been obtained using the unitary method.

What is a unitary method?

The unitary method is used to calculate the value of a single unit from a given multiple, to put it simply. With the unitary method, you first determine the value of a single unit before determining the value of the necessary quantity of units.

We are given two tins.

First : 345ml tin of paint costing £4.80

Second: 250ml tin of paint costing £3.35

Now, using the unitary method, we get

First tin

For 350ml, cost is £4.80

So, for 1ml, cost will be

£4.80/350 = £0.014

Second tin

For 250ml, cost is £3.35

So, for 1ml, cost will be

£3.35/250 = £0.013

Hence, the tin with 250ml is better value for money.

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The domain of the function will be All Real Numbers except x = -9. The correct option is B.

The range of values that we are permitted to enter into our function is known as the domain of a function. The x values for a function like f make up this set (x). A function's range is the set of values it can take as input. After we enter an x value, the function outputs this set of values.

Given that the function is y=−9x−26/x+3. As the domain is defined as all the input values going into the function. The domain will be all the real numbers except -9. Because the function is undefined on -9.

The graph of the function is attached with the answer below.

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The best predicted weight for an adult male who is 185 cm tall is approximately 164.65 kg.

A linear pattern with no other non-linear patterns or outliers is indicated by a scatter plot.

To find the best predicted value of weight (y) for an adult male who is 185 cm tall, you can use the equation:

y = -101 + (1.09 * x)

where x is the height in centimeters.

Substituting 185 for x, we get:

y = -101 + (1.09 * 185) = 164.65 kg

So the best predicted weight for an adult male who is 185 cm tall is approximately 164.65 kg.

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the inequality model. 5x-6y <0 is attached below.

What is inequality?

Inequalities are mathematical expressions where neither side is equal. In inequality, as opposed to equations, we compare two values. Less than (or less than or equal to), greater than (or greater than or equal to), or not equal to signs are used in place of the equal sign in between. Sometimes it can be about a "not equal to" relationship, where one thing is more than the other or less. In mathematics, an inequality is a relationship that results in a non-equal comparison between two numbers or other mathematical expressions.

2x + 3y > 7x-3y ​

5x-6y <0

So we have to plot this inequality.

Hence, the inequality model. 5x-6y <0 is attached below.

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The ratios 3/11 and 17/6 is not proportional.

Proportions are defined as the concept where two or more ratios are set to be equal to each other.

Suppose we have two ratio p : q and r : s. If both these ratios are proportional, then we can write it as p: q : : r : s.

This is same as p : q = r : s or p/q = r/s

The given ratios are 3/11 and 17/6.

For two ratios a/b and c/d to be proportional, a/b must be equal to c/d.

If 3/11 and 17/6 are proportional,

3/11 must be equal to 17/6.

Or doing the cross multiplication,

3 × 6 must be equal to 11 × 17.

18 must be equal to 187.

But 18 ≠ 187

So the ratios are not proportional.

Hence 3/11 and 17/6 are not proportional.

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The inverse equation of the function is y = 5x - 12

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

f(x) = 1/5x + 12

Express as an equation

So, we have

y = 1/5x + 12

Swap x and y

This gives

x = 1/5y + 12

Next, we make y the subject

1/5y = x - 12

This gives

y = 5x - 12

Hence, the inverse is y = 5y - 12

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From the data points given, the linear equation is obtained as y = 6x - 3.

What is a linear equation?

A linear equation is one that has a degree of 1 as its maximum value. No variable in a linear equation, thus, has an exponent greater than 1. A linear equation's graph will always be a straight line.

The data points given are -

X = 1, 2, 3, 4, 5

f(x) = 3, 9, 15, 21, 27

The slope of the line is given as m.

The slope can be deduced using the formula -

(y2 - y1) / (x2 - x1)

m = (9 - 3) / (2 - 1)

m = 6/1

m = 6

The slope-intercept form of a equation is y = mx + b

Substitute the values of x, y and m in the equation -

3 = 6(1) + b

3 = 6 + b

b = 3 - 6

b = -3

So, the equation becomes -

y = 6x - 3

This equation forms a straight line in the graph.

Therefore, y = 6x - 3 is a linear equation.

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Answer:

5

Step-by-step explanation:

diameter = 4 so radius =2

open up the cylinder so its top & bottom circle's circumference = 2πr =4π

top & bottom circle's area = πr² = 4π each, 8π for both

total surface = 28π

so lateral surface = 28π - 8π = 20π

so 20π = 4π* height

so height is 5

It take for the value of the car is 4.7 years.

Now, According to the question:

A new car is purchased for $23,000

and, over time its value depreciates by one half every 3 years.

It take for the value of the car to be $7,800.

According to the statement :

The equation will be :

y = 23,000 × [tex](\frac{1}{2} )^n[/tex]

7,800 = 23,000  × [tex](\frac{1}{2} )^n[/tex]

By simplification, we get:

n = 1.56

Over time its value depreciates by one half every 3 years.

So, 1.56 × 3 = 4.68 ≈ 4.7 years.

Hence,  It take for the value of the car is 4.7 years.

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Step-by-step explanation:

To have an equal number of buns and sausages, Arthur needs to find the least common multiple (LCM) of 6 and 10.

The LCM of 6 and 10 is 30.

Therefore, he should buy at least 30 packs of buns and 30 packs of sausages to get an equal number of buns and sausages.

That way, he would have 30/6 = 5 packs of buns and 30/10 = 3 packs of sausages.

Answer:

I need more information

Step-by-step explanation:

The solution to the system of equations cannot be determined from the information provided. The tables provide a set of x and y values for each equation, but they do not provide enough information to determine the equations themselves. In order to find the solution, we would need to know the form of the equations and be able to solve them simultaneously. The information provided is just a set of points that are plotted on a coordinate plane that is connected by using a straight line, but it is not enough to find the solution of the system of equations.

The scale factor is equivalent to {k} = 4/3.

        {K} = L{final}/L{initial}

Given is that figure 2 is a scale image of figure 1.

We can write the scale factor as -

K = {y}/{x} = 8/6 = 4/3

Therefore, the scale factor that is applied to figure {1} to get figure {2} is equivalent to {k} = 4/3.

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The lines best approximate the directrices of the ellipse y = 10.6 or y = -6.6

The term called directrices of the ellipse is defined as a line parallel to the latus rectum of ellipse and is perpendicular to the major axis of the ellipse.

Here we know that first of all here the known form is an ellipse with a vertical major axis so it would have to be

=> d = a²/c      

Here d refers the distance between the center and the directrix.

When we take the value of a= 8, b=3, then we get the value of C as,

=> c² = a²- b²

Apply the value on it, then we get

=> c ² = 64-9

Then the value of is about 7.4

Then the value of d is calculated as,

=> d = 64/7.4 = 8.6

So the value of y is defined as,

=> 2 + 8.6 = 10.6

Or if it falls the negative direction, then we get

=> y = 2 - 8.6 = -6.6

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If the vertices of the triangle BCD with vertices B(-8,3), C(-4, 6), and D(2, 0) , and if they are reflected across x axis and dilated by a scale factor of 0.5 then the coordinates of B"C"D" are B''(-4 , -1.5) , C"(-2 , 3) and D"(1 , 0)    .

If the point (x,y) is reflected across the x axis , then the reflected points are (x,-y) .

the vertices of the triangle BCD are : B(-8,3), C(-4, 6), and D(2, 0) ;

So , the reflected vertices are : B'(-8,-3) , C'(-4,-6) and D'(2,0) ;

if the point (x,y) is dilated by a scale factor of "k" , then the dilated vertices are written as : (kx , ky) .

the dilation factors is = 0.5 ;

So , the vertices B'(-8,-3) , C'(-4,-6) and D'(2,0) after dilation will be written as :

⇒ B''(-8×0.5 , -3×0.5) , C"(-4×0.5 , 6×0.5) and D"(2×0.5 , 0) ;

After simplifying further ,

we have ;

⇒ B''(-4 , -1.5) , C"(-2 , 3) and D"(1 , 0) ;

Therefore , the coordinates of the triangle B"C"D" are B''(-4,-1.5) , C"(-2,3) and D"(1,0)  .

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The cost of each pen is $25. This can be solved using unitary method.

In the unitary technique, the value of a single unit is determined first, and then the value of the required number of units is determined.

When employing ratio and proportion to solve a problem, it is essential to comprehend the units and values.

To make things simpler, always place the known facts on the left and the things that need to be calculated on the right. The number of apples in the aforementioned situation is known, but it is unclear how much the fruit is worth on the market.

It should be stressed that the unitary technique applies the notions of ratio and proportion to problems.

Let the cost of each pen be x .

then according to the question, the cost of book will be x-10

now

90 = 3x + x - 10

x = 25

hence the cost of the book is x - 10 = 15

and the cost of each pen is 25

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Step-by-step explanation:

this distance YZ is the height of the triangle WXY.

it splits the main triangle into 2 right-angled triangles WYZ and XYZ.

we can use Pythagoras

c² = a² + b²

with any of the 2 smaller right-angled triangles to get YZ.

remember, "c" is the Hypotenuse (the side opposite to the 90° angle). a and b are the legs.

so, when picking the larger one :

26² = 24² + YZ²

676 = 576 + YZ²

100 = YZ²

YZ = sqrt(100) = 10 = distance of Y to WX.

The bolts that are destroyed due to being more than 2 standard deviations from the mean will have a length of 10 cm ± 0.15 cm.

This means that any bolts that are shorter than 9.85 cm or longer than 10.15 cm will be destroyed. Any bolts that fall within this range will pass the quality-control check and will not be destroyed.

The manufacturer should also have a policy in place to ensure that bolts that are found to be too short or too long are discarded and not put into circulation. This will help maintain the quality of the bolts that are produced.

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The probability of getting blue and an odd number will be 1/10.

Probability simply means the chance that a particular thing or event will happen. It is the occurence of likely events. It is simply the area of mathematics that deals with the numerical estimates of the chance that an event will occur or that a particular statement is true.

The probability of getting blue is 2/10 and the probability of getting odd number is 5/10.

Therefore, the probability of getting blue and an odd number will be:

= 2/10 × 5/10

= 1/10.

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We will apply the percentage method to find that 48 students said red is their favourite colour.

Probability is a constituent part of computation that deals with the occurrence of a random event. The value is defined from zero to one. Probability is familiarised to predict how likely events are to happen. Probability is the degree to which something is possible to happen.

Total number of pupils in class 9 = 80

We need to calculate the number of students choosing red as their favourite colour.

We are given that 80 pupils are there in year 9.

Out of these, 3/5 of the pupils say that their favourite colour is red.

Let n be the number of pupils who say red is their favourite colour.

∴ n = (3/5) × 80

∴ n = 48

--The given question is incorrect; the correct question is

"3/5 of the pupils in a year 9 class say their favourite colour is red. There are 80 pupils in Year 9. How many students said red is their favourite colour?"--

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The coefficients of the terms on the right side of a binomial equation are the numbers in Pascal's Triangle.

Pascal’s Triangle is a method to know the binomial coefficients of terms of binomial expression (x + y)n, where n can be any positive integer and x, and y are real numbers. Pascal's Triangle is represented in a triangular form, it is kind of a number pattern in the form of a triangular arrangement. It begins with 1 on the top and with 1 running down on the two sides of the triangle. In the pascal triangle, each new number is between two numbers and below them and its value is the sum of two numbers above. This triangle is used in different types of probability conditions. Here each row represents the coefficient of expansion of (x + y)ⁿ.

Properties of Pascal’s Triangle:

Therefore, the coefficients of the terms on the right side of a binomial equation are the numbers in Pascal's Triangle.

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The segment lengths in the diagram are given as follows:

Using the Pythagorean Theorem, the length of segment GE is given as follows:

(GE)² = 5² + 12²

(GE)² = 169

GE = 13.

Applying the geometric mean theorem, the length AM is obtained as follows:

(GM)² = ME x AM

25 = 12 AM

AM = 2.083.

Then, applying the Pythagorean Theorem, the length AG is found as follows:

(AG)² = 2.083² + 5²

AG = 5.42.

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Answer:

d) 80°

Step-by-step explanation:

For isosceles triangle,

→ The other two angles are equal.

The given angle,

→ <A = 100°

Formula we use,

→ <A + <B + <C = 180°

Forming the equation,

→ 100° + x + x = 180°

Now the value of x will be,

→ 100° + x + x = 180°

→ 100° + 2x = 180°

→ 2x = 180° - 100°

→ 2x = 80°

→ x = 80°/2

→ [ x = 40° ]

Adding values of both angles,

→ x + x = 2x

→ 2 × 40° = 80°

Hence, option (d) is correct.

Answer:

Step-by-step explanation:

- Hope this helps!

The cheaper plan is given as follows:

Shop ZYX.

The cost of a single plum at Shop ZYX is given as follows:

$2.4.

To obtain the cheaper plan, we must obtain the cost of a single plum for each shop.

The cost of a single plum for each shop is obtained using a proportion, with the division of the total cost by the number of plums.

Hence the cost per plum in each shop is given as follows:

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The length of MN is 14 units.

A type of triangle known as an isosceles triangle has any two sides that are both the same length. The theorem that describes the isosceles triangle states that "if the two sides of a triangle are congruent, then the angle opposite to them are also congruent." This means that the two angles of an isosceles triangle opposite to equal sides are equal in measure. For example, in the triangle ΔABC, if sides AB and AC are equal, then ABC is an isosceles triangle where ∠B = ∠C.

Given;

ΔMNO,

∠M = ∠N

Also, NO=12 and OM=14

The angles are equal then triangle is isosceles and for given triangles the two sides are equal;

Sides opposite to angles are;

NO and MO

MO = NO = 14 units

Therefore, the length of third side of triangle MNO is 14 units.

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Using the arithmetic operation of addition the total thickness of granola bar and yogurt collectively is 1130 inches.

What is arithmetic operation?

A subject of mathematics known as arithmetic operations deals with the study and use of numbers in all other branches of mathematics. Basic operations including addition, subtraction, multiplication, and division are included.

The thickness of granola bar is = 1116 inches

The thickness of layer of yogurt is = 14 inches

To find the total thickness use the formula -

Total Thickness = Thickness of granola bar + Thickness of yogurt

The arithmetic operation of addition is used to find the total thickness.

Substitute the values into the equation -

Total Thickness = 1116 + 14

Total Thickness = 1130

Therefore, the total thickness is obtained as 1130 inches.

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The area of the given image design is; 15 in²

The formula to find the area of a triangle is;

Area = ¹/₂(base * height)

Let us divide the image into two triangles and as such;

Area of biggest triangle = ¹/₂(14 * 15)

= 85 in²

We will now deduct the rectangle that was removed by finding its' area to get;

Area of rectangle = length * width

= 10 * 7 = 70 in²

Thus;

Area of image = 85 - 70

Area of image = 15 in²

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A convex polyhedron have 241 space diagonals.

As we know that the every pair of vertices of the convex polyhedron determines either an edge, a face diagonal or a space diagonal.

Here, we have 26 vertices.

so, the total line segments determined by the vertices:

²⁶C₂

= 26! / 2! × (26 - 2)!

= 325

Out of 325  line segments, 60 are edges (Given).

We know that each triangular face has zero face diagonals and each quadrilateral face has two face diagonals.

So there are 2 × 12 = 24 face diagonals.

This means, 325 - 60 - 24 = 241 line segments segments must be the space diagonals.

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