Question

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

Answer 1

Answer: 77

Step-by-step explanation:

varies directly means: $\frac{y}{x} = k$

Step 1: solve for k  ⇒  $\frac{y}{x} = k$   ⇒   7 = k

Step 2: input the given value and the k-value to find the unknown value:  $\frac{y}{11} = 7$

y = 11(7)

y = 77