document.write( "Question 1130641: Tony weighs 8kg more than Dave. Jim is twice as heavy as Dave. Their combined weight is 352kg. Calculate Daves weight as a percentage of Tonys weight to 2dp. \n" ); document.write( "
Algebra.Com's Answer #747312 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! Tony weighs 8kg more than Dave. \n" ); document.write( "t = d + 8 \n" ); document.write( " Jim is twice as heavy as Dave. \n" ); document.write( "j = 2d \n" ); document.write( " Their combined weight is 352kg. \n" ); document.write( "t + d + j = 352 \n" ); document.write( "replace t and j \n" ); document.write( "(d+8) + d + 2d = 352 \n" ); document.write( "4d = 352 - 8 \n" ); document.write( "4d = 344 \n" ); document.write( "d = 344/4 \n" ); document.write( "d = 86 Kg is Dave's weight \n" ); document.write( " Calculate Daves weight as a percentage of Tonys weight to 2dp. \n" ); document.write( "find t \n" ); document.write( "t = 86 + 8 \n" ); document.write( "t = 94 kg is Tony's weight \n" ); document.write( "Find the percentage of d to t \n" ); document.write( " |