the value of y is directly proportional to the value of x. if y=35 when x=140,what is the value of y when x=70

1 answer:

7 0

Y = kx, where k is the constant of proportionality.

We need to find k as our first step.

35 = k140

35/140 = k

1/4 = k

We can now find y when x = 70.

y = kx

y = (1/4)(70)

y = 70/4

This fraction can be simplified or reduced more.

The number 2 is the GCF of 70 and 4.

70 ÷ 2 = 35

4 ÷ 2 = 2

Answer:

y = 35/2

You might be interested in

What is the equation in point−slope form of the line passing through (1, 2) and (2, 5)?

Gwar [14]

Answer:

Step-by-step explanation:

First, find the slope by using change in y divided by change in x.

Change in y = 5 - 2 = 3

Change in x = 2 - 1 = 1

This means that the slope is 3/1 = 3.

Then, you put it in the point-slope form so:

(y - 2) = 3(x - 1)

3 0

3 years ago

In the 1990s, the number of target stores increased from 420 stores to 914 stores. What was the percent increased in the number

tino4ka555 [31]

Divide 914/420, move the decimal over to the right two places and you'll get approximately 217.5%

EDIT: My mistake, read question wrong.
$914-420 = 494$
$494/420 = 1.17$
<u></u>117.62%
Subtract the difference and divide by original number (: Move decimal place over two places.

4 0

4 years ago

How many five cent make up 1 dollar

MrRa [10]

Answer: 20

Step-by-step explanation:

If 1 cent = 0.01 dollar

Then 5 cents = 0.05 dollar

Since 1 dollar= 100 cents

Therefore, the number of 5 cents in 100 cents is 100/5 = 20

I hope this helps

8 0