Question

The variables y and x have a proportiurial relationship, and y = 28 when x = 21.

What is the value of x when y = 42?

x= 14
x = 18 2/3
x= 31 1/2
x=56

Answer 1

x = 31 1/2

Explanation:

If y = 42, that means the original y = 28 was multiplied by 1.5, so we have to multiply x = 21 by 1.5 to find the answer.

21 * 1.5 = 31.5 A.K.A 31 1/2