algebra 1

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Madison is making a vinaigrette for her catering service using olive oil that costs forty cent per ounce and apple cider vinegar that costs twenty-five cents an ounce.The ideal batch of vinaigrette has 25% vinegar.If she has already combined 3 cups of vinegar and 1 cup of oil,how many cups of oil should she add? What is the total cost of her completed recipe?

  • algebra 1 -

    Cross multiply and solve for x.

    0.25/1 = 3/x

    0.25x = 3

    x = 12

    12 - 1 = 11

    Vinegar: 3 cups = 24 oz.
    24 * 0.25 = $6.

    Oil: 12 cups = 96 oz.
    96 * 0.45 = $43.20

    43.2 + 6 = ?

  • algebra 1 -

    49.2

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