document.write( "Question 1014167: Sam is 30 years older than Bob in 10 years from now Sam will be twice as old as Bob will be then find the present ages \n" ); document.write( "
Algebra.Com's Answer #630515 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Sam is 30 years older than Bob. \n" ); document.write( "10 years from now Sam will be twice as old as Bob. \n" ); document.write( "Find the present ages \n" ); document.write( "---- \n" ); document.write( "Equations: \n" ); document.write( "s = b + 30 \n" ); document.write( "s+10 = 2(b+10) \n" ); document.write( "----- \n" ); document.write( "Substitute for \"s\" and solve for \"b\":: \n" ); document.write( "b+30+10 = 2b+20 \n" ); document.write( "b = 20 yrs (Bob's age now) \n" ); document.write( "------ \n" ); document.write( "Solve for \"s\": \n" ); document.write( "s = b + 30 \n" ); document.write( "s = 20+30 = 50 yrs (Sam's age now) \n" ); document.write( "---------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |