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shutvik [7]
3 years ago
9

Algebra question please help me

Mathematics
2 answers:
Mila [183]3 years ago
7 0
What’s your question?
aliya0001 [1]3 years ago
4 0

Absolute value is defined as follows:

|x| = x if x ≥ 0 and -x if x < 0.

To make an equation using absolute value, you need to look for the following:

1) something where you use positive and negative numbers

2) something where changing the sign between positive and negative, or vice versa, doesn't affect the problem.

Choice A talks about price per gallons. You can't have negative money amounts so this one won't work.

Choice B talks about distances of walking. In math classes you can have negative distance, but not in reality. Nope.

Choice D talks about books. But books sold as a negative number means you bought them, and the meaning changes. Nope.

Choice C uses "plus or minus". It also talks about something that's approximate, and it's also a case where the signs won't matter. Bingo.


Thus choice C is best.

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