If a snack cake contains 450 food calories and Carla
is able to burn 250 calories by running for one-half an hour, how long must she run to completely burn off the snack cake?

9/10hr

Explanation:

From the question given:

Carla was able to burn 250 calories by running for one-half (1/2)hr.

Therefore, Carla will burn 450calories by running for = (450x1/2) /250 = 225/250 = 9/10hr

where is the following

explanation:

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