Thomas used 100 feet of rope to make 3 swings, one for each of his children. he had 13 feet left over when he was finished
how much rope did he use on each swing?
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I am assuming that each swing is the same size.
I am also assuming that he used one strand of rope for each swing.
(100 feet)-(13 feet)=(87 feet)
(87 feet)/(3 swings)=29 feet/swing