SOLUTION: newman invested a certain amount of money at 10% interest and $250 more than that amount at 12%. his total yearly interest was $52.00 . how much did he in vest at the 10% rate

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Question 467329: newman invested a certain amount of money at 10% interest and $250 more than that amount at 12%. his total yearly interest was $52.00 . how much did he in vest at the 10% rate
Answer by jorel1380(3719)   (Show Source): You can put this solution on YOUR website!
.10n+.12(n+250)=52
.10n+.12n+30=52
.22n=22
n=22/.22=100
n+250=350
Newman invested $100 at 10%..

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