Question

Hurry please! A 3-inch by 5-inch picture was proportionally enlarged as shown. What is the length of the unmeasured side?

Answer 1

it's going to be 15.

Explanation:

It is 15 because 3 was enlarged into 9, which means it was enlarged x3. Since the sides were porportionally enlarged, 5 should also be times 3. 5 times 3 equals 15.