document.write( "Question 452499: A is twice as old as B; ten years ago he was four times as old.what are their present ages? \n" ); document.write( "
Algebra.Com's Answer #312194 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! a-10=4*(b-10) \n" ); document.write( "a=2b \n" ); document.write( "2b-10=4b-40 \n" ); document.write( "30=2b \n" ); document.write( "15=b \n" ); document.write( "a=30 \n" ); document.write( "check \n" ); document.write( "20=4*5 \n" ); document.write( "ok \n" ); document.write( " \n" ); document.write( " |