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konstantin123 [22]
3 years ago
12

Lucy's goal for her cycling class at the gym is to burn 450 calories in one hour. The number of calories (c) she actually burns

in one hour varies no more than 45 calories. Which inequality below represents this scenario?
A. |c - 450| ≤ 45
B. |c + 450| ≥ 45
C. |c - 45| ≤ 450
D. |c - 45| ≥ 450
Mathematics
2 answers:
Roman55 [17]3 years ago
5 0
We are given the data that the threshold that lucy burns is 450 calories. However, there are fluctuating counts that tell that no more than 45 calories are burnt than 450. Hence, the inequality is A. |c - 450| ≤ 45 . Hence the absolute value considers both lower and higher than 450.
Arisa [49]3 years ago
3 0

The <em><u>correct answer</u></em> is:

A. |c - 450| ≤ 45  

Explanation:

Lucy's goal is 450 and the number of calories she actually burns is c.  The difference between her goal and the number she actually burns is no more than 45; this is where the expression c-450 comes from, as well as the less than or equal to 45.  However, we are not told that she always burns more or always burns less than her goal; therefore we must consider both, and this leads to our absolute value inequality.

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