document.write( "Question 980810: Three Years ago. Robert was Three times as old as Jim. Today he is only twice as old as Jim. How old are they each? \n" ); document.write( "
Algebra.Com's Answer #601877 by macston(5194)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( "R=Robert's age; J=Jim's age \n" ); document.write( ". \n" ); document.write( "R=2J \n" ); document.write( ". \n" ); document.write( "R-3=3(J-3) \n" ); document.write( "2J-3=3(J-3) \n" ); document.write( "2J-3=3J-9 \n" ); document.write( "6=J ANSWER 1: Jim is 6 years old. \n" ); document.write( ". \n" ); document.write( "R=2J=2(6)=12 ANSWER 2: Robert is 12 years old. \n" ); document.write( ". \n" ); document.write( "CHECK: \n" ); document.write( "Three Years ago. Robert was Three times as old as Jim. \n" ); document.write( "R-3=3(J-3) \n" ); document.write( "12-3=3(6-3) \n" ); document.write( "9=9 \n" ); document.write( " \n" ); document.write( " |