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9 December, 00:00

The number of calories burned C varies directly with the time spent exercising T when then it swats for 4 hours he burns 800 calories which of the following equation show this direct linear variation

A c=800+

B c=4t

C c=t

D c=200t

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Answers (1)
  1. 9 December, 01:29
    0
    Option D : c = 200t

    Step-by-step explanation:

    The number of calories burned C varies directly with the time spent exercising T

    ∴ ∝ t

    ∴ c = a t

    Where a is the constant of proportion

    exercising for 4 hours he burns 800 calories

    ∴ c = 800 when t = 4

    ∴ 800 = 4 a

    ∴ a = 800/4 = 200

    ∴ c = 200 t

    The answer is option D : c = 200t
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