Question

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 is one hour varies no more than 45 calories. Which in equality below represents this scenario The options are in the picture.

Answer 1

Since the number of calories that she burns varies no more than 45 from 450, this means that the absolute difference between 450 and the real value is less than or equal to 45:

$\lvert c-450\rvert\le45$

Therefore, the answer is:

$a$