Question

If y varies directly as x and y = 35 when x = 5, find y when x = 11.

Answer 1

Answer: 77

Explanation:

varies directly means:
`(y)/(x) = k`

Step 1: solve for k ⇒
`(y)/(x) = k` ⇒ 7 = k

Step 2: input the given value and the k-value to find the unknown value:
`(y)/(11) = 7`

y = 11(7)

y = 77