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At a concession stand, a pickle and two bags of chips costs a total of $3.25. Three pickles and four bags of chips costs a total $7.25. To determine the cost of one pickle, Kevin is writing a system of equations. His first equation is shown: x+2y=3.25

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  1. 4 July, 08:28
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    P + 2c = 3.25 Start with these two equations

    3p + 4c = 7.25

    p = - 2c + 3.25 Solve for one variable

    3 (-2c + 3.25) + 4c = 7.25 Substitute

    -6c + 9.75 + 4c = 7.25

    -2c = - 2

    c = 1

    p + 2 (1) = 3.25 Substitute

    p + 2 = 3.25

    p = 1.25

    A bag of chips costs $1

    A pickle costs $1.25
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