Question

Think about the proportion and the cross products for this problem: Shelley sold one customer 5 peanut butter biscuits for $3. She sold another customer 7 beef treats for $4.20. Because the cross products are equal, which statements are true? Select all that apply.

The ratios are not equivalent

The ratios are equivalent.

The ratios are not a proportion

The ratios are a proportion

Answer 1

The ratios are equivalent,and The ratios are a proportion.

Answer 2

When cross products are equal, they will have the same ratio. You can prove this by cross multiplying the fractions:


`(5)/(3) = (7)/(4.20)`

Cross multiply the two:


`21 = 21`

This proves that the ratios are equivalent.