document.write( "Question 245479: A girl is now one-fourth as old as her father, and in seven years, she will be one-half as old as her father was twelve years ago. What are her and her father's present ages? \n" ); document.write( "
Algebra.Com's Answer #179298 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! girl=g \n" ); document.write( "father=f \n" ); document.write( "g=f/4 \n" ); document.write( "g+7=(f-12)/2 \n" ); document.write( "f/4+7=(f-12)/2 \n" ); document.write( "multiply both sides by 4 \n" ); document.write( "f+28=2f-24 \n" ); document.write( "subtract f from both sides \n" ); document.write( "28=f-24 \n" ); document.write( "52=f \n" ); document.write( "13=g \n" ); document.write( "check \n" ); document.write( "13=52/4 \n" ); document.write( "13=13\r \n" ); document.write( "\n" ); document.write( "13+7=(52-12)/2 \n" ); document.write( "20=40/2 \n" ); document.write( "20=20\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |