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Mathematics 18 Online
OpenStudy (anonymous):

There are 23 coins in a bank. All the coins are dimes and quarters. The total value of the coins is $3.80. How many dimes are there? How many quarters?

OpenStudy (stamp):

Hint: Develop and solve a system of equations.

OpenStudy (anonymous):

I feel like he's not getting it so... x+y=23 where x is the number of dimes and y is the number of quarters .1x+.25y=3.8 You multiply the number of the respective coins by the value of each. Now solve the system.

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