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Mathematics 21 Online
OpenStudy (anonymous):

A man invests $5,200, part at 4% and the balance at 3%. If his total income for the two investments is $194, how much money did he invest at each rate?

OpenStudy (anonymous):

.04x+.03(5200-x)=194

OpenStudy (anonymous):

how would i write it then ? it says this: $ at____ 4% and $____ at 3%

OpenStudy (anonymous):

solve for x which would give you amount invested at 4%. To get 3%, subtract amount 4% from 5200

OpenStudy (anonymous):

im still confused

OpenStudy (anonymous):

x is amount invested at 4%. (5200-x) is amount invested at 3%

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