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David is tracking the amount of water he drinks each day.
On Thursday, he drinks 15 cups of water.
On Friday, he drinks 12 cups of water.
What is the percent change in his water intake?

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Answer:

The original amount of water is  15 cups.

The change in David's water intake is  3 cups.

The percent change is 20 %. This is a percent  decrease .

Step-by-step explanation:

It was correct

Parrain

The percentage change in the amount of water David drank from Thursday to Friday is -20%.

On Thursday, David drank 15 cups of water and then on Friday drank 12 cups.

The first thing to do is find the difference:

= Friday water - Thursday

= 12 - 15

= -3 cups

The percentage change is:

= Change / Number of cups on Thursday x 100%

= -3 / 15 x 100%

= -20%

In conclusion, the percentage change was -20%

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