You have quarters and dimes. altogether you have 42 coins with a total value of $7.65. how many of each do you have? write a system of equations and solve.

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asked Jul 14, 2018 86.6k views

4 votes

You have quarters and dimes. altogether you have 42 coins with a total value of $7.65. how many of each do you have? write a system of equations and solve.

Mathematics
middle-school

David Ruttka asked

by David Ruttka

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1 Answer

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Quarters = x, Dimes = y.
x + y = 42
.25x + .10y = 7.65
Use those equations to find the matrix.

Dko answered Jul 21, 2018

by Dko

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