(45x) = (25x) (57+x)

Answers

Answer 1
Solution is X1 = -276/5, x2 = 0
Answer 2

Answer:

x = 0; x = [tex]\frac{-276}{5}[/tex]

Step-by-step explanation:

45x = 25x(57 + x)

45x = 1425x + 25x²

25x² + 1425x - 45x = 0

25x² + 1380x = 0

5x(5x + 276) = 0

[tex]\left \{ {{5x=0} \atop {5x + 276=0}} \right.[/tex]

[tex]\left \{ {{x=0} \atop {x=\frac{-276}{5} }} \right.[/tex]


Related Questions

Can you help me find the B

Answers

Answer:

32°+b = 180°

b = 180° - 32° = 148°

Create a data set with at least 7 values so that the mean is 20.
plz no bot if bot i will kill 50 point

Answers

Answer:

I cant remember this

Step-by-step explanation:

i cant remember

Answer:

Hello! answer: 45, 20, 15, 11, 36, 8, and 5

Step-by-step explanation:

Data set I created: 45, 20, 15, 11, 36, 8, and 5

It doesnt matter what the data set is as long as it has 7 numbers added together that equals 140 because 140 ÷ 7 = 20 45 + 20 + 15 + 11 + 36 + 8 + 5 = 140 then divide by how many numbers are in the data set and 140 ÷ 7 = 20 Hope that helps

lol what is the answer pls

Answers

Answer:
24a³
Step-by-step explanation:
Simplify, then, 2.1 2³ divided by 2¹= 2 (³_¹)= 2²
( 3 . 4³ .2. =24a³.

A 23.9 foot tall streetlight casts a shadow that is 17.7 feet long. How long is the shadow cast by a nearby parking meter that is 3.6 feet high?

Answers

Answer:

2.67 feet long

Step-by-step explanation:

Create a proportion where x is the length of the parking meter's shadow:

[tex]\frac{23.9}{17.7}[/tex] = [tex]\frac{3.6}{x}[/tex]

Cross multiply and solve for x:

23.9x = 63.72

x = 2.67

So, the parking meter's shadow is approximately 2.67 feet long

PLEASE HELP! WILL NAME BRAINLIEST!!

Answers

Answer:

Y = 60 degrees and X = 12

Step-by-step explanation:

x+3 and 15 are congruent so x+3 = 15, 12+3 = 15 therefore x = 12

y = 60 vertically opposite angles are equal. :D

Answer:

x= 12

y= 60

Step-by-step explanation:

to find x we need to know that lines DC and AB are parallel, so they have the same length (I don't know if that is why they have the same length, but I know they do lol)

So you can make this equation and solve:

15=x+3

-3     -3

12=x

THEN, to find y angle A and C are vertical angles, so they are congruent (this is the reason why they have the same measure lol)

So, y=60 degrees :)

I hope this sorta helps lol :)

Yeah i need help someone lol

Answers

Answer:

45%

Step-by-step explanation:

If it not right im sorry that is a very odd question

asap! please help i’ll give brainliest

Answers

well it would make sense to say that the longest fish is 12in longer than the shorter fish because if you take 21in (the longest fish) and subtract 9 (the shortest fish) you would get 12.

Hope that helped pls give brainlist

The sum of two numbers is 38. The greater number is 8 more than the other number. Find each number.

Answers

Step-by-step explanation:

Answer:

23 and 15

Step-by-step explanation:

Create a system of equations where x is the greater number, and y is the smaller number.

x + y = 38

x = y + 8

Solve by substitution, by substituting the second equation into the first one, then solving for y:

x + y = 38

(y + 8) + y = 38

Add like terms and solve for y:

2y + 8 = 38

2y = 30

y = 15

Add 8 to this, to find the greater number:

15 + 8

= 23

So, the numbers are 23 and 15.

? can guys help me please?

Answers

Answer:

The range of this set of numbers is 9

Step-by-step explanation:

The range is the greatest number subtracted by the lowest number

in this problem that is 21-12

Answer:

9

Step-by-step explanation:

range = highest number in a set minus the lowest number in a set, in your case:

21 - 12 = 9

What expression is equivalent to -2 (5x - 4) + 13x

Answers

What expression is equivalent to -2 (5x - 4) + 13x

=3x+8

A. The median income for nuclear engineers is greater than the income of all engineers

B. The median income for police officers and musicians are the same

C. All nuclear engineers earn more than all of the police officers

D. A musicians will eventually earn more than a police officer

Answers

Answer:

B

Step-by-step explanation:

In a box and whisker plot, the line inside of the box is the median. Using the numbers at the bottom of the graph, you can tell that the median income for police officers is 30 thousand dollars. The median income for musicians is also 30 thousand dollars. So the second answer is correct.

A roll of wire has 51 inches of wire. If each bracelet requires 7.2 inches of wire, estimate the number of bracelets that can be made. Explain why your answer is right.

Answers

Answer:

7

Step-by-step explanation:

51 ÷ 7.2 is about 7.08 continued but you can't make .08 of a braclet so it's just 7

The principal P is borrowed at a simple interest rate r for a period of time t. Find the​ loan's future value​ A, or the total amount due at time t. Round answers to the nearest cent. P=$2000, r=%6, T=6 years

Answers

Answer:

$2720

Step-by-step explanation:

Given data

Principal=$2000

r= %6

T= 6 years

The expression for the final amount is

A= P(1+rt)

A=2000(1+0.06*6)

A=2000(1+0.36)

A=2000*1.36

A=2720

Hence the amount is $2720

When the sum of 3 times a number and 4 is increased by 6, the result is 2 times a number decreased by 14. Determine whether each step is a correct step for writing and solving this equation by selecting Yes or No. A Write the equation 3n + 4 + 6 = 2n – 14. Yes No B Write the equation 3(n + 4) + 6 = 2(n – 14). Yes No C Combine like terms. Yes No D Subtract 2n from each side. Yes No E Add 10 to each side. Yes No F Subtract 10 from each side. Yes No

Answers

Answer:

A. Yes

B. No

C. Yes

D. Yes

E. No

F. Yes

Step-by-step explanation:

A Write the equation 3n + 4 + 6 = 2n – 14. Yes

B Write the equation 3(n + 4) + 6 = 2(n – 14). No

C Combine like terms. Yes

D Subtract 2n from each side. Yes

E Add 10 to each side. No

F Subtract 10 from each side. Yes

Solution:

sum of 3 times a number and 4 is increased by 6, the result is 2 times a number decreased by 14

Let the number = n

{(3 * n) + 4} + 6 = (2 * n) - 14

3n + 4 + 6 = 2n - 14

3n + 10 = 2n - 14

3n + 10 - 2n = 2n - 14 - 2n

n + 10 = -14

Subtract 10 from each side

n + 10 - 10 = -14 - 10

n = -24

Answer: A. Yes B. No C.Yes D. Yes E. No F. Yes

Step-by-step explanation:

The circumference of a circle is 22π in. What is the area, in square inches? Express your answer in terms of π

Answers

Answer:

A = 121 pi in^2

Step-by-step explanation:

The circumference is given by

C = 2 * pi*r

22 pi = 2 * pi *r

Divide each side by 2 pi

22 pi / (2 pi) = 2 pi r / (2pi)

11 = r

Now find the area

A = pi r^2

A = pi (11)^2

A = 121 pi in^2

What is the measure of the smallest angle in the
diagram?
15°
299
32°
45°

Answers

Answer:

15

Step-by-step explanation:

it all comes down to 7x-1

then set that equal to 106 so it looks like 7x - 1 =106

106 - 1 = 105

105/7 = x

x = 15

good luck on your test

Answer:

Step-by-step explanation:

Need Help Need Help Pls
Part A: Create a scatter plot to represent the data shown above. Sketch the line of best fit. Label at least three specific points on the graph that the line passes through. Also include the correct labels on the x-axis and y-axis. Part B: Algebraically write the equation of the best fit line in slope-intercept form. Include all of your calculations in your final answer. Part C: Use the equation for the line of best fit to approximate the weight of the little girl at an age of 14 years old.​

Answers

It is to be noted that the scatter plot that represent the above data is attached accordingly.

What is a scatter plot?

A scatter plot is a graph in which the data of two variables are displayed along two axes, and any association is revealed by the pattern of the resultant dots.

Remember Scatter plot is a type of x-y graphX is the horizontal line and will be the AgeY is the vertical lien and will be Weight

What is the Algebraic equation of the best fit line in slope-intercept form? [Part B]

Slope-intercept form is y = mx + b

m is the gradient of the line, determined by calculating "change of y divided by change of x"

Age 2 and weight 32 would be the point (2, 32) on the graphAge 8 and weight 60 is the point (8, 60) in the graph

To compute for the gradient (m) we say:

(60 - 32)/(8-2)

= 28/6

m = 4.667

Next we calculate for b

The point on the graph where the line crosses the vertical line is known as the y-intercept, or b. (y-axis).

Put one of the graph's points, say (2, 32), and the amount of m you just computed into the slope-intercept form to calculate b.

That is:

32 = m(2) + b

Recall that m = 4.667

Hence 32 = 4.667 * 2 + b

32 = 6.667 + b

b = 32 - 6.667

b = 25.33

Using the equation for the line of best fit what is the approximate weight of the little girl at an age of 14 years old? [Part C]

Given that we have the figures for m and b,
Recall that the function is: y = mx + b; and that

X is the horizontal line and will be the AgeY is the vertical lien and will be Weight

If x = 14 years, then

y = 4.667 * 14 + 25.33

y = 90.668

y ≈ 91 kg.

Learn more about scatter plots at;
https://brainly.com/question/6592115
#SPJ1

This scatter plot shows the relationship between the average weight and average heart rate for 11 different animals. The line of best fit is shown on the graph. Select True or False for each statement based on the graph.

Answers

Answer:

See below

Step-by-step explanation:

1) I would lean more toward false because most of the points aren't in a straight line

2) That is most likely true because the line of best fits appears to be hitting that point

3) That is false because point D is located on the line of best fit which means it isn't an outlier

Factor completely 625x4 − 81.

(5x − 3)(5x − 3)(25x2 + 9)
(5x − 3)(5x + 3)(25x2 − 9)
(5x + 3)(5x + 3)(25x2 + 9)
(5x − 3)(5x + 3)(25x2 + 9)

Answers

The correct answer is D

(uploading to make sure it’s correct) i’ll give brainliest

Answers

Answer:

The median is 3 miles .....

Answer:

the median is 4 miles

list then from least to greatest and cross off a number from each side

Can someone summarize this for me please?

Answers

Answer:

0 is 16 1 is 13 2 is 17 that's it final answer

3-2i+8=23 can you solve this find what i equals

Answers

Answer:

i = -6

Step-by-step explanation:

3 - 2i + 8 = 23

3 + 8 - 2i = 23

11 - 2i = 23

11 - 11 - 2i = 23 - 11

-2i = 12

-2i ÷ -2 = 12 ÷ -2

i = -6

Round to nearest tenth pls

Answers

Answer:

28.9

Step-by-step explanation:

Which of the following are solutions to the equation below?
Check all that apply
(5x-2)² = 10​

Answers

The solution to the equation is given by:

F. [tex]x = \frac{\sqrt{10} + 2}{5}[/tex]

What is the equation?

It is given by:

[tex](5x - 2)^2 = 10[/tex]

First, we apply the square root to both sides to remove the square, hence:

[tex]\sqrt{(5x - 2)^2} = \sqrt{10}[/tex]

[tex]5x - 2 = \sqrt{10}[/tex]

Then, isolating x:

[tex]5x = \sqrt{10} + 2[/tex]

[tex]x = \frac{\sqrt{10} + 2}{5}[/tex]

Given by option F, which is the solution.

More can be learned about equations at https://brainly.com/question/25537936

x -y = 3


solve for y


Answers

Answer:

y=x−3

Step-by-step explanation:

x−y=3

Step 1: Add -x to both sides.

x−y+−x=3+−x

−y=−x+3

Step 2: Divide both sides by -1.

−y/−1=−x+3/1

y=x−3

find the mean median and mode. 63, 40, 51, 70, 36, 21, 51, 28, 19

Answers

MODE: 51
MEAN: 42.1
MEDIAN: 40
RANGE: 70-19 = 51
(The range just in case you need it)

The mean, median, and mode of the data will be 41.111, 40, and 51 respectively.

What are statistics?

Statistics is the study of collection, analysis, interpretation, and presentation of data or discipline to collect and summarise the data.

The data is given below.

63, 40, 51, 70, 36, 21, 51, 28, 19

Arrange the data in ascending order, then we have

19, 21, 28, 36, 40, 51, 51, 63, 70

Then the mean of the data is given as,

Mean = (19 + 21 + 28 + 36 + 40 + 51 + 51 + 63 + 70) / 9

Mean = 379 / 9

Mean = 42.11

The median of the data is the middle term of the data which is 40.

The mode is 51 because the number frequency of 51 is the highest.

More about the statistics link is given below.

https://brainly.com/question/10951564

#SPJ2

what is the y intercept of . y = ½x -5

Answers

Answer: (0, 10) or 10

Step-by-step explanation:

plug 0 into y

(0) = 1/2x - 5

1/2x - 5 = 0

      + 5 + 5

1/2x = 5

* 2    * 2

x = 10

Will give brainiest!!!

Answers

Answer:

$13.50

Step-by-step explanation:

Add all the snacks' prices together

3.25 + 1.80 + 1.45 = $6.50

Subtract the total price of the snacks from the $20 bill she paid with

20 - 6.50 = $13.50

So, $13.50 was the amount of change she received.

If point Cis between points A and B, then AC + __ = AB.
A. ABC
B. CA
C. BC
D. AB

Answers

I think it’s C. I also just posted a question so if anyone could answer or look at the comments that would be AMAZING

Which of the following are solutions to the equation below?
Check all that apply
4x²- 12x + 9 = 5​

Answers

Answer:

A & B

Step-by-step explanation:

4x²- 12x + 9 = 5

4x²- 12x + 4 = 0

devided by 4

x²-3x+1=0

x = (3 ± √9-4)/2 = (3±√5)/2

x = (√5+3)/2 or x= (-√5+3)/2

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