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13 November, 08:49

4. On a beach trip, Lucy rents a bike from "Wheels by the Waves", where

they rent bikes for $12 plus $3 per hour. If Lucy spent $30, how many hours

(h) did she rent a bike?

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Answers (1)
  1. 13 November, 10:45
    0
    6 hours

    Step-by-step explanation:

    The equation for this would be

    c=3h+12

    It costs $3 per hour, and there is a $12 cost no matter how many hours the bike is rented for

    We know, c, or the cost is $30, so we can substitute that in

    30=3h+12

    Solve, by isolating the variable, h

    First, subtract 12 on both sides

    30=3h+12

    18=3h

    Divide by 3 on both sides

    h=6

    So, she rented the bike for 6 hours
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