document.write( "Question 219604: I am very lost with this problem. Here it is: Arnie Waldman has chosen a workout that combines weight training and aerobics. If he does 30 min of weight training, followed by a 30-min aerobics class, he will burn a total of 374 calories. If he burns 12/5 as many calories doing aerobis as doing weight traing, how many calories will he burn in each activity? \n" ); document.write( "
Algebra.Com's Answer #165129 by stanbon(75887) ![]() You can put this solution on YOUR website! Arnie Waldman has chosen a workout that combines weight training and aerobics. If he does 30 min of weight training, followed by a 30-min aerobics class, he will burn a total of 374 calories. If he burns 12/5 as many calories doing aerobis as doing weight traing, how many calories will he burn in each activity? \n" ); document.write( "----------------------- \n" ); document.write( "weight training calories: x \n" ); document.write( "aerobic calories::::::::: (12/5)x \n" ); document.write( "--------------------------------------- \n" ); document.write( "Equation: \n" ); document.write( "x + (12/5)x = 374 \n" ); document.write( "Multiply thru by 5 to get: \n" ); document.write( "5x + 12x = 5*374 \n" ); document.write( "17x = 5*374 \n" ); document.write( "x = 110 calories (from weight training) \n" ); document.write( "---- \n" ); document.write( "(12/5)x = 264 calories (from aerobics) \n" ); document.write( "=========================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |