Question 129992
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?
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Let # of 11-in balls be "x" ; value = 3.5x dollars
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# of 12-in balls is "80-x" ; value = 4(80-x)=320-4x dollars
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EQUATION:
3.5x +320-4x = 305
-0.5x = -15
x = 30 (# of 11-in. balls)
80-x = 50 (# of 12-in balls)
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Cheers,
Stan H.