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3 years ago

What is the percent of change from 100 to 14

Mathematics

1 answer:

Alik [6]3 years ago

4 0

Answer:

there is an 86% change

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4x+7y=2<br> help . Pls.

solong [7]

Answer:

x = 2-7y over 4

Step-by-step explanation:

4x+7y=2

-7y -7y

4x = 2 - 7y

/4 /4

x=2 - 7y/4

6 0

3 years ago

Simplify 8 over negative 4 divided by negative 3 over 9. 6 −6 12 −12

skelet666 [1.2K]

Answer:

Step-by-step explanation:

Given

$\frac{8}{-4} / \frac{-3}{9}$

Required

Solve

$\frac{8}{-4} / \frac{-3}{9}$

We start by converting the division sign to multiplication

$\frac{8}{-4} / \frac{-3}{9} =\frac{8}{-4} * \frac{-9}{3}$

Then, we divide -9 by 3

$\frac{8}{-4} / \frac{-3}{9}=\frac{8}{-4} * -3$

Then, we divide 8 by -4

$\frac{8}{-4} / \frac{-3}{9}=-2 * -3$

Multiply -2 and -3 to give final result

$\frac{8}{-4} / \frac{-3}{9} = 6$

Hence, $\frac{8}{-4} / \frac{-3}{9}$ is equivalent to 6

4 0

3 years ago

Y=-8x-4 for what value of x is y equal too -16

boyakko [2]

Answer: X=1.5

Step-by-step explanation:

The equation when y is -16

-16=-8x-4

-12=-8x

12/8 is 1.5

8 0

3 years ago

How do you find the square root of a number?

MA_775_DIABLO [31]

Multiply it by its self 3 times for example 2 to the square root of 3 2x2x2

3 0

3 years ago

Susan runs 22 km in 2 hours and 45 minutes. What is her average speed in km an hour? Explain your answer please!

Tpy6a [65]

Answer:

22km= 2 hours and 45 mins

To find speed: Distance/Time

22/2.75 = 8

Your answer 8km/h

Step-by-step explanation: When finding speed, the formula is always distance divided by time. 45 minutes of 60 minutes is 3/4 of an hour, and 3/4 is 0.75 is decimal. So you add the 2 + .75, and you'll get 2.75. After you convert the time, you begin dividing and you'll get your answer!

4 0

3 years ago