document.write( "Question 1183712: 5 years back the ratio of kate and sharon 4:3. In 5 years, the sum of the ages of kate and sharon will be 90. how old is sharon right now? \n" ); document.write( "
Algebra.Com's Answer #814146 by josgarithmetic(39620)\"\" \"About 
You can put this solution on YOUR website!
You could write two equations in k and x variables, and then,
\n" ); document.write( "\"cross%28%2890-x-5%29%2F%28x-5%29=4%2F3%29\"
\n" ); document.write( "which should be easily solved.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "k and x for Kate and Sharon now;\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"system%28%28k-5%29%2F%28x-5%29=4%2F3%2Ck%2Bx%2B5%2B5=90%29\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"k%2Bx=80\"
\n" ); document.write( "\"k=80-x\"
\n" ); document.write( "-
\n" ); document.write( "\"%2880-x-5%29%2F%28x-5%29=4%2F3\"--------solve this for x.
\n" ); document.write( "
\n" );