Question 384643: Sall has a tin can that contain $5.65 in quarters and dimes. there are 34 coins in the can. how many of each type does she have? Answer by mananth(16949) (Show Source):
You can put this solution on YOUR website! Sall has a tin can that contain $5.65 in quarters and dimes. there are 34 coins in the can. how many of each type does she have?
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quarters = q
dimes = d
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q+d=34.................1
25q+10d=565 cents
/5
5q+2d=113......2
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multiply (1) by -5
-5q-5d=-170
add it to (2)
5q-5q-5d+2d=113-170
-3d=-57
/-3
d=19
q=34-d
q=34-19
q=15
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Check
15*25+10*19
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quarters=15,dimes =10
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m.ananth@hotmail.ca
