Question

Jerry hiked along a path. From his starting position, he hiked downhill to a valley where the elevation dropped 25 meters below his starting position. Then, he hiked up to a hill that was 40 meters higher than the valley. The following equation describes this situation. -25 + 40 = 15. What does 15 tell us?

Answer 1

Answer: 15 represents where Jerry is after the elevation dropped 25 meters and then rose 40 meters.

Answer 2

15 represents that Jerry hiked up 15 meters from his starting position.

Explanation:

It is given that Jerry hiked downhill to a valley where the elevation dropped 25 meters below his starting position. Then, he hiked up to a hill that was 40 meters higher than the valley.

Hiked downhill = 25 meters

Hiked up = 40 meters

The given equation is

`-25+40=15`

Here, hiked downhill represented by negative sign and hiked up represents by positive sign.

So, positive 15 represents that Jerry hiked up 15 meters from his starting position.