Question

How far is Paula from the surface of the water?1. What integer represents Paula's starting height above the water?2. What integer represents the total distance Paula descends?3. Write an addition expression to represent Paula's distance belowthe water's surface.4. On the number line below, the arrow represents Paula's startingheight above the water. Draw an arrow to represent Paula's diveinto the water. Where does your arrow end?Tea thamadWANVALLIS

Answer 1

Let the water surface be the origin or the 0 mark.

Above means positive and below means negative.

1. The diving board is 2 feet above the water surface, the starting point or height is 2

2. The total distance Paula descends is 7. Since she descends 7 feet below the diving board.

3. The Paula's distance below the water surface is x from the water's surface or the 0 mark.

The distance will be :

`\begin{gathered} x+2=7 \\ x=7-2 \end{gathered}`

4. The number line is shown above. The arrow ends to the left.

Conclusion, Paula is 7 - 2 = 5 feet below the water surface.

The answer is 5 feet below the water's surface.