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20 August, 10:37

S varies directly as T.

If S is 20 when T is 4, then T is

ao when S is 30.

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Answers (1)
  1. 20 August, 13:31
    0
    Answer:6

    Step-by-step explanation:

    S is directly proportional to T

    S=kT where k is any constant

    In first case 20=k (4) which means k=5

    Hence

    S=kT

    30=kT

    30=5 (T)

    => T=6
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