Question

ms campbell invested $7200 for 2 1/2 years. if she earned $756, at what rate did she invest her money. using I=PRT and the answer in percent form

Answer 1

Given I=PRT

Rearrange the formula to find R

I / PT= R

756 / (7200 * 2.5) = R
756 / 18000 = R
0.042 = R
so R = 4.2%