Answered

A hiker is climbing down a valley. He stops for a water break 4 times. Between each break, he descends 15 meters. How many meters did he descend?

Ju Chan answered the question by writing the following:

4(−15) meters = −60 meters.

Which word in the problem indicates that a negative number should be used?

Answer :

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The word in the problem that indicates that a negative sign should be used is "descend"

How many meters did he descend?

We know that he stops for water breaks four times, and between each water break, he descends 15 meters.

The written equation is:

4*(-15)m = -60m

Why the negative sign is used?

The negative sign is used because the hiker is descending, so its height is decreasing. The word in the problem that indicates that a negative sign should be used is "descend"

If you want to learn more about signs:

https://brainly.com/question/5870782

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