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OpenStudy (anonymous):
A collection of quarters and dimes is worth $18.30. There are 111 coins in all. How many of each coin are there? How many quarters? How many dimes?
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OpenStudy (anonymous):
@iGreen @texaschic101 @JosephCosta
OpenStudy (igreen):
We write a system equations. 0.25q + 0.10d = 18.30 q + d = 111 These are our two equations, where q = quarters, and d = dimes.
OpenStudy (igreen):
We can graph this system of equations to find the solution.
OpenStudy (igreen):
So what's the solution? @iQueen
OpenStudy (anonymous):
43 Quarters ? 63 Dimes ? @iGreen
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OpenStudy (igreen):
Yep!
OpenStudy (igreen):
@iQueen
OpenStudy (anonymous):
Can you help me with one more? @iGreen
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