Asked by vicki

an investor has $30,000 to invest. if part is invested at 5% and the rest at 9%, how much will be invested at 5% to yield 8% on the total amount? use I=PRT
Answered by Steve
if x is at 5%, the rest (30000-x) is at 9%. So, you want x in

.05x + .09(30000-x) = .08(30000)
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