Question

Please help i have been trying to figure this out for like an hour

Answer 1

B

Explanation:

Since x varies directly as y, the ratio of x to y remains the same. Let the value of x when y=4 be a. Then we have

`\frac {7 \frac12} {10} = \frac a4`

We can cross multiply to get that

`10a = 30, \text{so } \boxed{a=3}`