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Question:

Joan invests $4,000 in an account that earns 3% simple interest. How much will Joan have in the account in 10 years?

A $5,200
Explaination

Use the interest formula (I = Prt) to determine the amount of interest earned, where the principle (P) is 4,000, the rate (r) is .03 (3%) and the time (t) is 10. I = 4,000(.03)(10), or I = $1,200. Add the interest earned to the original amount invested. $4,000 + $1,200 = $5,200.