Question 1014621: jerome bought 2 postcards and received $1.35 in change in quarters and dimes. If he got 6 coins back, how many of each coin did he get? Found 2 solutions by addingup, stanbon:Answer by addingup(3677) (Show Source):
You can put this solution on YOUR website! q+d= 6 subtract q from both sides:
q= 6-d
0.25q+0.10d= 1.35
0.25(6-d)+0.10d= 1.35
1.50-0.25d+0.10d= 1.35
-0.15d= -0.15
d= -0.15/-0.15
d= 1 He got 1 dime and
6-1= 5 quarters back
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Check:
5*0.25= 1.25
1*0.10= 0.10
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Total: 1.35 We have the correct answer
You can put this solution on YOUR website! jerome bought 2 postcards and received $1.35 in change in quarters and dimes. If he got 6 coins back, how many of each coin did he get?
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Ans 5 quarters and 1 dime
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Cheers,
Stan H.
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