document.write( "Question 1116799: Luke is 2 years younger than his friend. Five years ago, Luke was three-fifths of his friends age. How old is Luke now? \n" ); document.write( "
Algebra.Com's Answer #731720 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Luke is 2 years younger than his friend. Five years ago, Luke was three-fifths of his friends age. How old is Luke now? \n" ); document.write( "Equations: \n" ); document.write( "L = F - 2 \n" ); document.write( "L-5 = (3/5)(F-5) \n" ); document.write( "------ \n" ); document.write( "Substitute for \"L\" and solve for \"F\":: \n" ); document.write( "F-2-5 = (3/5)F - 3 \n" ); document.write( "------- \n" ); document.write( "F-7 = (3/5)F - 3 \n" ); document.write( "---- \n" ); document.write( "F-4 = (3/5)F \n" ); document.write( "(2/5)F = 4 \n" ); document.write( "F = 10 yrs \n" ); document.write( "--- \n" ); document.write( "Ans: Luke = F-2 = 8 yrs old \n" ); document.write( "--------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "----------- \n" ); document.write( " |