document.write( "Question 724067: two years ago, Jill was 7 times as old as Jack. Three years from now, Jill will be 4 times as old as Jack. How old are they now? \n" ); document.write( "
Algebra.Com's Answer #443579 by lwsshak3(11628)![]() ![]() ![]() You can put this solution on YOUR website! two years ago, Jill was 7 times as old as Jack. Three years from now, Jill will be 4 times as old as Jack. How old are they now? \n" ); document.write( "** \n" ); document.write( "2 years ago: \n" ); document.write( "let x=jack's age \n" ); document.write( "7x= Jill's age \n" ); document.write( ".. \n" ); document.write( "3 years from now: (5 yrs hence) \n" ); document.write( "x+5=Jack's age \n" ); document.write( "7x+5=Jill's age \n" ); document.write( "7x+5=4(x+5)=4x+20 \n" ); document.write( "3x=15 \n" ); document.write( "x=5 \n" ); document.write( ".. \n" ); document.write( "Now: \n" ); document.write( "x+2=7 \n" ); document.write( "7x+2=37 \n" ); document.write( "jack's age now=7 \n" ); document.write( "Jill's age now=37 \n" ); document.write( " \n" ); document.write( " |