Question

The water level in Catherine's hot tub was below the recommended water level when she turned the hose on. She forgot to turn thehose off and filled the hot tub above the recommended water level. The number line below shows the number of gallons below therecommended water level the hot tub was when she turned the hose on and the number of gallons above the recommended waterlevel the hot tub was when she turned it off.

Answer 1

6.6

Step-by-step explanation

In order to determine the number of gallons that Catherine put on the hot tub, calculate the absolute value of the difference between the two endpoints.

The two endpoints are -4.8 and 1.8

So, the distance between the two red points on the number line is

`\begin{gathered} =1.8--4.8 \\ =1.8+4.8 \\ =6.6 \end{gathered}`

Hence, the number of gallons catherine put in the hot tub is 6.6 gallons