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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 :

The word in the problem that indicates is a negative number is “descend”
shubhamchouhanvrVT

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

How many meters did he descend?

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

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

The written equation is:

4 x (-15)m = -60m

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"

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