Question 935204: A sum of $500 is in the form of denominations of $5 and $10. If the total number of notes is 90, find the number of notes of each type. Answer by TimothyLamb(4379) (Show Source):
You can put this solution on YOUR website! x = number of 5 dollar notes
y = number of 10 dollar notes
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x + y = 90
5x + 10y = 500
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put the system of linear equations into standard form
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x + y = 90
5x + 10y = 500
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solution:
x = number of 5 dollar notes = 80
y = number of 10 dollar notes = 10
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