SOLUTION: In a bag are quarters and dimes. If you have a total of 16 coins worth $3.10 how many of each type of coin do you have ?

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Question 1133610: In a bag are quarters and dimes. If you have a total of 16 coins worth $3.10 how many of each type of coin do you have ?
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
d%2Bq=16
d=16-q
-
0.25q%2B0.1%2816-q%29=3.1

0.25q%2B1.6-0.1q=3.1
0.15q=3.1-1.6
0.15q=1.5
q=1.5%2F0.15
highlight%28q=10%29-------------------highlight%28d=6%29