document.write( "Question 857906: I paid my bill using dimes only. If I had paid using only quarters, I would have needed 18 fewer coins. How much was my bill? \n" ); document.write( "

Algebra.Com's Answer #517267 by KMST(5328) $\"\"$ $\"About$

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$\"d\"$ = number of dimes used.
\n" ); document.write( " $\"0.1d\"$ = amount paid, in $.
\n" ); document.write( " $\"d-18\"$ = number of quarters needed to pay using only quarters.
\n" ); document.write( " $\"0.25%28d-18%29\"$ = amount those quarters add up to, in $.
\n" ); document.write( " $\"0.25%28d-18%29=0.1d\"$
\n" ); document.write( " $\"0.25d-4.5=0.1d\"$
\n" ); document.write( " $\"0.25d-0.1d-4.5=0\"$
\n" ); document.write( " $\"0.15d-4.5=0\"$
\n" ); document.write( " $\"0.15d=4.5\"$
\n" ); document.write( " $\"d=4.5%2F0.15\"$
\n" ); document.write( " $\"d=30\"$
\n" ); document.write( " $\"0.1d=0.1%2A30=highlight%283%29\"$ is the amount paid, in $. \n" ); document.write( "

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