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Colt1911 [192]
3 years ago
13

Jack invests $1500 at a certain annual interest rate, and he invests another $3000 at an annual rate that is one-half percent hi

gher. if he receives a total of $375 interest in 1 year, at what rate is the $1500 invested?
Mathematics
1 answer:
wolverine [178]3 years ago
6 0
<span>Let r be the rate which $1500 invested. thus r+0.005 is the rate which $3000 invested. then, 1500r + 3000(r+0.005) = 375 1500r + 3000r + 15 = 375 4500r+ 15 = 375 4500r = 375-15 4500r= 360 r = 4500/360 12.5 so, rate =12.5%</span>
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