document.write( "Question 129992: You are ordering softballs for 2 softball leagues. The size of a softball is measured by its circumference. The pony league uses an 11-inch softball priced at $3.50. The junior league uses a 12-inch softball priced at $4.00. The bill smeared in the rain but you know the total was 80 softballs for $305.How many of each size did you order? \n" ); document.write( "
Algebra.Com's Answer #94950 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! The pony league uses an 11-inch softball priced at $3.50. The junior league uses a 12-inch softball priced at $4.00. The bill smeared in the rain but you know the total was 80 softballs for $305.How many of each size did you order? \n" ); document.write( "--------------- \n" ); document.write( "Let # of 11-in balls be \"x\" ; value = 3.5x dollars \n" ); document.write( "----------------- \n" ); document.write( "# of 12-in balls is \"80-x\" ; value = 4(80-x)=320-4x dollars \n" ); document.write( "----------------- \n" ); document.write( "EQUATION: \n" ); document.write( "3.5x +320-4x = 305 \n" ); document.write( "-0.5x = -15 \n" ); document.write( "x = 30 (# of 11-in. balls) \n" ); document.write( "80-x = 50 (# of 12-in balls) \n" ); document.write( "============================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |