Question

The ratio of Jet Ski rentals to boat rentals at a store is 7 : 2. If the number of boat rentals doubles and the number of Jet Ski rentals stays the same, then the number of boat rentals is how many times the number of Jet Ski rentals?

a) 3:7
b) 4:7
c) 2:7
d) 1:7

Answer 1

If the number of boat rentals doubles and the number of Jet Ski rentals stays the same, the new ratio of boat rentals to Jet Ski rentals is 4:7.

Step-by-step explanation:

The ratio of Jet Ski rentals to boat rentals at the store is 7:2. If the number of boat rentals doubles and the number of Jet Ski rentals stays the same, we need to determine the new ratio of boat rentals to Jet Ski rentals.

Let's assume the number of boat rentals is x. Since the ratio of Jet Ski rentals to boat rentals is 7:2, the number of Jet Ski rentals would be (7/2)x.

If the number of boat rentals doubles, the new number of boat rentals would be 2x. The number of Jet Ski rentals remains the same, (7/2)x.

Therefore, the new ratio of boat rentals to Jet Ski rentals is 2x:(7/2)x, which simplifies to 4:7.