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6 August, 07:49

A water park charges a rental fee plus $1.50 per hour to rent inflatable rafts. The total cost to rent a raft do 6 hours is $15. Assume the relationship is linear. Find and interpret the rate of change and the initial value.

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  1. 6 August, 08:12
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    rental fee = $6

    average cost for 6 hours = $2.50/hour.

    Step-by-step explanation:

    x + 1.50*6 = 15 where x = the initial rental fee

    x + 9 = 15

    x = $6

    The rental fee is $6.

    For 6 hours, the cost per hour works out to 15/6 = $2.50
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