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25 September, 06:27

An insurance company uses the formula T=3.5n + 5 to work out the cost, T pounds, for insuring a customer for n days. Work out the cost for travel insurance for 4 days?

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  1. 25 September, 10:24
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    Cost of travel insurance for 4 days = 19 pounds

    Step-by-step explanation:

    The insurance company uses the formula T = 3.5n + 5 to work out the cost, T pounds for insuring the customer for n number of days. Where n is the number of days.

    The algebraic equation given has two variables which are cost T of insuring and n which is the number of days for insuring. Mathematically,

    T = cost of insuring in pounds

    n = number of days

    Therefore, finding the cost T for 4 days

    T = 3.5n + 5

    T = 3.5 * 4 + 5

    T = 14 + 5

    T = 19 pounds

    Cost of travel insurance for 4 days = 19 pounds
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