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

Hi Travina;

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