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31 May, 23:01

A shipping company charges $6 to ship a package that weighs up to 1 pound and $2 for each additional pound or portion of a pound. Which equation represents the cost, in dollars, of shipping a package that weighs x pounds?

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  1. 31 May, 23:27
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    Let x be the weight of the package in pounds

    We know that if x = 1, the cost is $6

    Using this in the given two equations,

    6 = 6 + 2 ((1) - 1)

    6 = 6 which is true

    OR

    6 = 6 + 2 ((1) + 1)

    6 = 10 which is not true

    Therefore, the correct equation is the first one. Also, x must be greater than 0 because if we plug in 0 to our correct equation, option A, then the price is less than the minimum that needs to be paid (minimum price when shipping 1 lb)
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