Asked by k

After 5 years, marcels account earned $ 600 in interest. If the interest rate is 0.03, how much did marcel initially invest?
Answered by Ms. Sue
I = Prt

600 = P * 0.03 * 5

600 = 0.15P

600 / 0.15 = P
Answered by kim
After 20

years, Marcel's account earned $1200
in interest. If the interest rate (in decimal form) is 0.1

, how much did Marcel initially invest?
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