document.write( "Question 1168589: Sherry is half as old as her mother. Twelve years ago, she was one third of her mother’s age. Find their ages
\n" ); document.write( "now.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

Algebra.Com's Answer #793180 by MathTherapy(10552) $\"\"$ $\"About$

You can put this solution on YOUR website!

\n" ); document.write( "Sherry is half as old as her mother. Twelve years ago, she was one third of her mother’s age. Find their ages
\n" ); document.write( "now.
\n" ); document.write( "

Let Sherry's age be S
\n" );
document.write( "Then mother's is: 2S
\n" );
document.write( "We then get: 2S - 12 = 3(S - 12)
\n" );
document.write( "2S - 12 = 3S - 36
\n" );
document.write( "2S - 3S = - 36 + 12
\n" );
document.write( "- S = - 24
\n" );
document.write( "Sherry's age, or 
\n" );
document.write( "You should now be able to find the mother's age! \n" );
document.write( "

\n" );