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Question 932106: Manuel invested his savings in two investment funds. The $4000 that he invested in Fund A returned a 5% profit. The amount that he invested in Fund B returned a 2% profit. How much did he invest in Fund B, if both funds together returned a 4% profit?
Answer by TimothyLamb(4379)   (Show Source):
You can put this solution on YOUR website! x = amount at 5% = 4000
y = amount at 2%
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0.05x + 0.02y = 0.04(x + y)
0.05*4000 + 0.02y = 0.04(4000 + y)
0.05*4000 + 0.02y = 0.04*4000 + 0.04y
0.04y - 0.02y = 0.05*4000 - 0.04*4000
0.02y = 0.05*4000 - 0.04*4000
y = ( 0.05*4000 - 0.04*4000 )/0.02
y = 2000
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answer:
y = amount at 2% = $2000
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