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Louis has three more quarters than dimes in his pocket, for a total of $1.80. Which equation could be used to determine the number of dimes, x, in his pocket?
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4 votes
Louis has three more quarters than dimes in his pocket, for a total of $1.80. Which equation could be used to determine the number of dimes, x, in his pocket?

User Mactive
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1 Answer

4 votes
d=# of dimes q=# of quarters
q=d+3
0.25q+0.10d=1.80
Substitute 0.25d+0.75+0.10d=1.80
Combine like terms 0.35d=1.05
Divide d=3
Substitute q=6
Answer 3 Dimes
User Wesam
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