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Create a linear system to model this situation. Then use substitution to solve the linear system to solve the problem.

- Bobbie has been saving dimes & quarters to buy a new toy. She has a total of 28 dimes and quarters, with a value of $4.30. How many of each type of coin does Bobbie have?

1 answer

dimes --- x
quarters ---- 28-x

10x + 25(28-x) = 430

etc
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