Answers

2015-07-16T16:27:27+08:00
Let x be the part invested at 7% and
150,000-x b invested at 5%

since p=br, then add the part invested at 7% and 5%, equate them to 10,000

therefore,
.07x+.05(150,000-x)=10,000
solve for x, and you'll arrive at
x= 125,000
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