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tamaranim1 [39]
3 years ago
9

Rob is setting up a model train track that is 3 and 3 over 8 feet long. No telephone pole is needed at the start of the track. H

owever, along the track, he places a telephone pole every 3 over 8 foot apart. How many telephone poles does he need?
Mathematics
1 answer:
Free_Kalibri [48]3 years ago
7 0

The number of 3/8 foot sections that 3 3/8 feet can be divided into is found using division:

\dfrac{\left(3\frac{3}{8}\right)}{\left(\frac{3}{8}\right)}=\left(3+\dfrac{3}{8}\right)\cdot\dfrac{8}{3}\\\\=\dfrac{3\cdot 8+3}{8}\cdot\dfrac{8}{3}=\dfrac{9\cdot 3\cdot 8}{3\cdot 8}\\\\=9

Rob needs 9 telephone poles.

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