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6 June, 13:00

F (m) = 2.5 + 0.12m

If Natalie paid $6.82 for one call, how many minutes long was it?

Select one:

A. 28

B. 36

C. 42

D. 45

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Answers (2)
  1. 6 June, 13:28
    0
    B. 36.

    Step-by-step explanation:

    Substituting 6.82 for m:

    6.82 = 2.5 + 0.12m

    0.12 m = 6.82 - 2.5

    0.12m = 4.32

    m = 4.32 / 0.12

    m = 36 minutes.
  2. 6 June, 13:29
    0
    36 minutes long

    Step-by-step explanation:

    6.82 = 2.5 + 0.12m

    4.32 = 0.12m

    36 = m; 36 minutes long.
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