document.write( "Question 828830: A group of students held a car wash to raise money. They charged $9 for each car and $12 for each van or SUV. Two teams worked continuously, one washing cars and the other washing vans and SUVs. The team washing cars required 25% less time per vehicle than the other team. Each team washed vehicles for 4 hours. The two teams together raised a total of $720. How long, on average, did each team take to wash a vehicle? \n" ); document.write( "
Algebra.Com's Answer #499543 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! 9c+12v=720, \n" ); document.write( "a=.75b, \n" ); document.write( "ac=4, \n" ); document.write( "bv=4\r \n" ); document.write( "\n" ); document.write( "a=0.1 (6 minutes), b=0.133333 (8 minutes), c=40., v=30. \n" ); document.write( ".1 (6 minutes) hour to wash a car and .1333 hours ( 8 minutes) to wash a van \n" ); document.write( "30 cars and 40 vans \n" ); document.write( "40*6=240 minutes \n" ); document.write( "30*8=240 \n" ); document.write( "360+360=720\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |