SOLUTION: Betty has 10 more dimes than quarters. If she has $3.45, how many coins does she have?

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Question 280107: Betty has 10 more dimes than quarters. If she has $3.45, how many coins does she have?
Answer by richwmiller(9143) About Me  (Show Source):
You can put this solution on YOUR website!
d=q+10
10d+25q=345
d=17 q=7
check
170+175=345
345=345
ok
d+q=24 coins