12-06-2015
Mathematics

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motel clerk counts his $1 and $10 bills at the end of a day. He finds that he has a total of 57 bills having a combined monetary value of $165. Find the number of bills of each denomination that he has.

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SpeedAngel SpeedAngel

12-06-2015

You can use a matrix equation to discover that the motel clerk has 45 $1 bills and 12 $10 bills.

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