18-06-2018
Mathematics

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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?

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harpazo harpazo

19-06-2018

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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