you have 13 coins totaling $2.75 in your pocket they are all quarters and dimes. how many of each type of coin do you have?
1 answer:
Let q = quarters
Let d = dimes
q + d = 13
0.25q + 0.10d = 2.75
You have two equations and two unknowns.
Take it from here.
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9 : 3 = 3
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