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11 March, 20:35

Under Plan A, a 2-minute call costs $0.54 and a 4 minute call cost $1.08. Plan B, the cost for x minutes is given by the equation y = 0.289x. Which plan is cheaper?

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  1. 11 March, 21:37
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    Plan A

    Step-by-step explanation:

    Find the unit rates for each plan

    Plan A:

    cost/minutes

    0.54/2=0.27

    1.08/4=0.27

    0.27 per minute

    Plan B:

    The unit rate is given in the equation

    The equation is multiplying 0.289 by x (minutes), so each minute must cost 0.289

    About 0.29 per minute

    Plan A is cheaper because 0.27 is less than 0.289
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