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 Question from Christopher: Ok I've got forty foot and 9 spacers one each end and 7 between what is the distance between the seven in the middle

Hi Christopher. I drew a diagram and assumed that the spacers are evenly spaced along the 40 feet.

From the diagram the spacers divide the 40 feet into 8, equal size pieces. Hence each piece is $\large \frac{40}{8} \normalsize = 5$ feet in length.

Penny

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