document.write( "Question 968194: William is 2 times as old as Stephanie. 28 years ago, William was 9 times as old as Stephanie. how old is Stephanie now? \n" ); document.write( "
Algebra.Com's Answer #591683 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! William is 2 times as old as Stephanie. 28 years ago, William was 9 times as old as Stephanie. how old is Stephanie now? \n" ); document.write( "---- \n" ); document.write( "Equations: \n" ); document.write( "W = 2*S \n" ); document.write( "----------- \n" ); document.write( "W-28 = 9(S-28) \n" ); document.write( "---- \n" ); document.write( "Substitute for \"W\" and solve for \"S\": \n" ); document.write( "2S-28 = 9S-9*28 \n" ); document.write( "----- \n" ); document.write( "7S = 8*28 \n" ); document.write( "S = 8*4 \n" ); document.write( "Ans: S = 32 yrs (Stephanie's age now) \n" ); document.write( "----------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "----------- \n" ); document.write( " |