SOLUTION: Joe has an equal number of nickles and dimes. If he has $1.05 in all, how many coins of each type does he have?

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Question 1054572: Joe has an equal number of nickles and dimes. If he has $1.05 in all, how many coins of each type does he have?
Found 2 solutions by josgarithmetic, addingup:
Answer by josgarithmetic(39631) About Me  (Show Source):
Answer by addingup(3677) About Me  (Show Source):
You can put this solution on YOUR website!
n = d
0.05n+0.10d = 1.05 substitute for n
0.05(d)+0.10d = 1.05
0.05d+0.10d = 1.05
0.15d = 1.05
d = 7 he has 7 dimes, and since he has an equal number of nickels, he has 7 nickels
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Check:
7*0.10 = 0.70
7*0.05 = 0.35
Total . . 1.05 Correct
:
John