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25 January, 08:10

C = 0.5n + 5

C=cost (£)

n=number of miles travelled

Calculate the cost of a journey that is 25 miles.

Show your working out and write the answer in the box below.

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Answers (1)
  1. 25 January, 09:27
    0
    cost of journey of 25 miles = £ 17.5

    Step-by-step explanation:

    Base on the equation the cost of the journey can be represented as

    C = 0.5n + 5

    where

    C = cost in £

    n = number miles covered

    To calculate the cost of a journey that is 25 miles we have to insert the value of n as 25 in the equation. Therefore,

    C = 0.5n + 5

    n = 25

    C = 0.5 (25) + 5

    C = 12.5 + 5

    C = £ 17.5

    cost of journey of 25 miles = £ 17.5
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