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OpenStudy (anonymous):
Medal and fan to those who answer. A collection of quarters and nickels is worth $13.70. There are 106 coins in all. How many of each coin are there?
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OpenStudy (anonymous):
Nickels + Quarters = 106 ... Quarters= 106 - Nickels .05Nickels + .25Quarters = 13.70 .05Nickels + .25(106 -Nickels) = 13.70 .05Nickels + 26.5 - .25Nickels = 13.70 26.5 -13.7 = .25Nickels -.05Nickels 12.8 = .2Nickels divide both sides bQuarters .2 64 = Nickels 106 -64 = 42 (Quarters)
OpenStudy (anonymous):
Thank you.
OpenStudy (anonymous):
you're welcome.
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