Answer:
The tank flowed out
gallons per hour.
Explanation:
We know that
The tank flowed out
gallons in
hours.
To find the ratio of change, that is, the number of gallons per hour, we just need to divide these quantities as follows
![18(1)/(2) / 4(1)/(4)=(37)/(2)/ (17)/(4)=(37)/(2)* (4)/(17)=(148)/(34)=(74)/(17) =4(6)/(17)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/hrlonz2bfcyqvprdzn4b95yfrn9xwylt3m.png)
Therefore,
the tank flowed out
gallons per hour.