Question

Assume that y varies directly with x. If y = 16 when x = 8, find y when x = 5.

Write and solve a direct variation equation to find the answer.
y =​

Answer 1

Explanation:

5y + x = 25

Subtract x from both sides when x = 5

5y + x - x = 25 - x

5y = 20

5y/5 = 20/5

=4

Y=4