document.write( "Question 948251: Sue is 7 years older than her cousin. Their product of their ages are 78. How old are they? \n" ); document.write( "

Algebra.Com's Answer #578757 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"S=7%2BC\"$
\n" ); document.write( " $\"S%2AC=78\"$
\n" ); document.write( "Substituting,
\n" ); document.write( " $\"%287%2BC%29C=78\"$
\n" ); document.write( " $\"C%5E2%2B7C-78=0\"$
\n" ); document.write( " $\"%28C-6%29%28C%2B13%29=0\"$
\n" ); document.write( "Only the positive solution makes sense here.
\n" ); document.write( " $\"C-6=0\"$
\n" ); document.write( " $\"C=6\"$
\n" ); document.write( "So then,
\n" ); document.write( " $\"S=7%2B6\"$
\n" ); document.write( " $\"S=13\"$ \r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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