The proportion 15 over 3 equals y over 7 , which number is equal to y in the proportion?

The equation is:

15/3 = y/7

To solve for y, first cross multiply:

15* 7 = 3 *y

Simplify:

105 = 3y

Divide both sides by 3:

y = 105/3

y = 35

For this case we have the following proportion:

We must find the value of "y".

We look for the value of "y" of the expression multiplying by 7 on both sides of the expression:

Finally, we have the value of "y" in the expression is 35

answer: 42

use a calculator to find that 845/73 = 11.575

the whole part of the answer is 11. multiply this by 73 to get 11*73 = 803.

subtract that result from 845 to get 845 - 803 = 42