SOLUTION: Leila invested her savings in two investment funds. The $4000 that she invested in Fund A returned a 3%
profit. The amount that she invested in Fund B returned a 10% profit. How
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Question 907940: Leila invested her savings in two investment funds. The $4000 that she invested in Fund A returned a 3%
profit. The amount that she invested in Fund B returned a 10% profit. How much did she invest in Fund B, if both funds together returned a 6% profit?
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
we know 3 rates and one amount invested
0.03*4000+0.1(x)=0.06(4000+x)
Multiply out.
120+0.1(x)=240+0.06x
combine like terms
0.04x=120
isolate x
x=120/0.04
Divide
x=3000
check
0.03*4000+0.1(x)=0.06(4000+x)
120+0.1*3000=0.06(4000+3000)
120+300=0.06(7000)
420=420
ok
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