document.write( "Question 1099617: Logan saves $5.50 in dimes and quarters over a week. He has 20 more dimes than quarters. Find the number of dimes and quarters he saves. \n" ); document.write( "

Algebra.Com's Answer #714129 by Fombitz(32388) $\"\"$ $\"About$

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$\"10D%2B25Q=550\"$
\n" ); document.write( " $\"2D%2B5Q=110\"$
\n" ); document.write( "and
\n" ); document.write( " $\"D=Q%2B20\"$
\n" ); document.write( "Substituting,
\n" ); document.write( " $\"2%28Q%2B20%29%2B5Q=110\"$
\n" ); document.write( " $\"2Q%2B40%2B5Q=110\"$
\n" ); document.write( " $\"7Q=70\"$
\n" ); document.write( "Solve for Q then use either equation to solve for D.
\n" ); document.write( " \n" ); document.write( "

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