Question

3. Yesenia and Desmond are both in their school's service club, and they are raising money for

charity. Yesenia has raised $120 over 36 days. Desmond has just started raising money, and he
has raised $10 in 3 days. Are Yesenia and Desmond raising money at a proportional rate?

Answer 1

yes, the rates are proportional

Explanation:

You want to know if $120 over 36 days is a rate proportional to $10 over 3 days.

Proportion

A proportion is a statement that two ratios are equal. Here, the ratios of interest can be reduced to lowest terms and compared:

$120/(36 days) = (12×10)/(12×3) $/day = 10/3 $/day

$10/(3 days) = 10/3 $/day . . . . . . the same ratio

The rates of money raising are proportional.