document.write( "Question 745164: tyler is 20 years older than shane. in 5 years, shane will be half as old as tyler is then. use 2 variables to find their present ages. \n" ); document.write( "
Algebra.Com's Answer #453751 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! tyler is 20 years older than shane. in 5 years, shane will be half as old as tyler is then. use 2 variables to find their present ages. \n" ); document.write( "------- \n" ); document.write( "Equations: \n" ); document.write( "t = s + 20 \n" ); document.write( "s+5 = (1/2)(t+5) \n" ); document.write( "----------------------- \n" ); document.write( "Substitute for \"t\" and solve for \"s\": \n" ); document.write( "s+5 = (1/2)(s+25) \n" ); document.write( "--- \n" ); document.write( "2s + 10 = s+25 \n" ); document.write( "s = 15 (Shane's age now) \n" ); document.write( "----- \n" ); document.write( "Solve for \"t\": \n" ); document.write( "t = s + 20 \n" ); document.write( "t = 35 (Tyler's age now) \n" ); document.write( "=============== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "================== \n" ); document.write( " \n" ); document.write( " |