document.write( "Question 519643: What is the equation for... Ginger has five more quarters than dimes. She has $5.10 in change. If she has only quarters and dimes, how many coins of each type does she have? \n" ); document.write( "

Algebra.Com's Answer #345718 by oberobic(2304) $\"\"$ $\"About$

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When doing coin problems, you have to keep track of the number of coins and their values.
\n" ); document.write( "d = number of dimes
\n" ); document.write( "10d = value of the dimes in cents
\n" ); document.write( "q = number of quarters
\n" ); document.write( "25q = value of the quarters in cents
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\n" ); document.write( "10d + 25q = 510 cents
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\n" ); document.write( "q = d+5
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\n" ); document.write( "Solve by substitution.
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\n" ); document.write( "Always check your answer!
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\n" ); document.write( "Done. \n" ); document.write( "

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