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heather has divided $6300 between two invesments, one paying 9%, the other paying 4%. If the return on her investment is $372, how much does she have in each investment
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Mar 7, 2016
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heather has divided $6300 between two invesments, one paying 9%, the other paying 4%. If the return on her investment is $372, how much does she have in each investment
Mathematics
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Noj
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assuming that the two investments are X & Y
X + Y = 6300
X = 6300 - Y (1)
9/100X + 4/100 Y = 372 (2)
replacing X from (1) into (2)
9/100(6300-Y) + 4/100 Y = 372
567 - 9/100Y +4/100Y = 372
(-9+4)/100Y = 372 - 567
5/100Y = -195
Y = 100*195/5 =
3900
From (1) we can get X
X = 6300 - 3900 =
2400
I hope this is helpful
Harshid Vasoya
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Mar 11, 2016
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Harshid Vasoya
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