Question 857917: I paid my bill using dimes only. If i had paid using only quarters, I would have needed 18 fewer coins. Jow much was my bill? Answer by josmiceli(19441) (Show Source):
You can put this solution on YOUR website! Let = number of dimes needed
Let = number of quarters if they were used
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The bill is:
The bill is also:
and, by substitution:
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I can say:
and
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The bill is:
This is cents or $3.00
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Or, if quarters were used: or $3.00
OK
