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23 June, 21:17

As a membership fee a health club charges a one time amount of $40 and charges $25 for each month. The total fee after m months is $240. What is the value of m

A runner warms up for ten minutes and then takes seven minutes to run each mile. The total time after r miles is 45 minutes. How many miles are run?

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  1. 23 June, 21:38
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    First you need to set up an equation y = mx + b. m would be the monthly charge and b would be the one time fee. x represents the number of months.

    To solve for the number of months with a total price of 240 we substitute 240 in for y and solve for x.

    240 = 25x + 40

    subtract 40 from each side

    200 = 25x

    divide by 25

    8 = x

    8 months

    10 + 7r = 45

    7r = 35

    r = 5

    5 miles
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