A package contains 20 golf balls. The total weight of the golf balls is 32 ounces. Use the model to show the number of ounces per golf ball and the number of golf balls per ounce.
Number of golf balls (n) = 20Total weight (w) = 32 ouncestotal weight = number of balls (n) * weight of 1 golf ball∴ weight of 1 golf ball = w/n =32/20 ounces ⇒ the weight distribution is 1.6 ounce per golf ballNow, apply unitary method :32 ounces is total weight of 20 golf balls∴ 1 ounce amounts to 20/32 golf balls⇒ there are 5/8 golf balls per ounce