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OpenStudy (anonymous):
Marcy has a total of 100 dimes and quarters. If the total value of the coins is $14.05, how many quarters does she have?
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OpenStudy (anonymous):
Let us presume that Marcy has all dimes. That means she has a total of 10 dollars. That is $4.05 less than the value, which is $14.05. The difference between the quarters and the dimes is fifteen cents, and 4.05/0.15 equals 27 quarters, and you can use that to find the number of dimes which is 73. Check: 27*25+73*10=1405.
OpenStudy (anonymous):
thanks
OpenStudy (anonymous):
You could use a system of equations. Do you want me to explain that?
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