Determine if 2.5/10 = 12/48 or 2.5/2 = 12/24 is a proportion.

A. 2.5/2 = 12/24

2. Both are proportions.

C. 2.5/10 = 12/48

4. Neither are a proportion.

1 answer

The correct answer is B. Both are proportions.

To check if two proportions are equivalent, you can cross-multiply and simplify.

For 2.5/10 = 12/48:

10 * 12 = 120

2.5 * 48 = 120

Since the cross-products are equal, the proportion is valid.

For 2.5/2 = 12/24:

2 * 12 = 24

2.5 * 24 = 60

Again, the cross-products are equal, so this is also a valid proportion.