algebra
posted by Anonymous .
Bob has $4000 invested in an account that earns 4.75% simple interest. He has another account that earns 6.5% simple interest. How much is invested in the 6.5% account if it earned $425.10?

I = r * Po.
I = Interest earned.
r = Annual percentage rate(APR) expressed as a decimal.
Po = Initial investment.
425.10 = 0.065 * Po,
Po = 425.10 / 0.065 = $6540.
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