One pipe can fill a pool in 9 hours. Another pipe can fill the pool in 6 hours. How long would it take them to fill the pool if they were working together?
+118608 \(\frac{1pool}{9hours}+\frac{1pool}{6 hours}=\frac{5pools}{18 hours} \\~\\ \frac{18hours}{5 pools}=3 \;\;hours\;\; and \;\;3/5\;\; hour \;\;per\;\;pool \\= 3hours\;and\;36 minutes\;\;per\; pool\)
coding:
\frac{1pool}{9hours}+\frac{1pool}{6 hours}=\frac{5pools}{18 hours}
\\~\\
\frac{18hours}{5 pools}=3 \;\;hours\;\; and \;\;3/5\;\; hour \;\;per\;\;pool
\\= 3hours\;and\;36 minutes\;\;per\; pool
