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5 April, 09:14

Mei and Scott are selling wrapping paper for school fundraiser. Customers can buy rolls of plain wrapping paper and rolls of holiday wrapping paper. Mei sold 6 rolls of plain wrapping paper and 3 rolls of holiday wrapping paper for a total of $90. Scott sold 1 roll of plain wrapping paper and 4 rolls of holiday wrapping paper for a total of $71. What is the cost of each one roll of plain wrapping paper and one roll of holiday wrapping paper?

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  1. 5 April, 11:46
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    Mei: 6P + 3H = 90

    Scott: 1P + 4H = 71

    (p+4H=71) * - 6

    -6P - 24H = - 426

    6P + 3H = 90

    0P + - 21H = - 336

    -21/-21 - 336/-21

    H = 16 holiday wrapping paper is 16$

    1P + 4 (16) = 71

    1P + 64 = 71

    -64 from both sides

    p = 7 Plain wrapping paper is 7$

    Check your solution

    6 (7) + 3 (16) = 90

    42 + 48 = 90
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