You can put this solution on YOUR website! ---
x = dimes
y = quarters
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x + y = 20
10x + 25y = 320
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copy and paste the above linear system in standard form into this matrix-method solver:
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solution:
x = dimes = 12
y = quarters = 8
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system matrix
1 1
10 25
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inverse of system matrix
1.6666667 -0.066666667
-0.66666667 0.066666667
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determinant of system matrix = 15
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