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16 December, 01:15

Mandana is ordering new tile for her kitchen floor. The area of the floor is 117.7 square feet, and she wants to order between 15% and 20% extra of the materials. Which of the following is a reasonable amount of tile for Mandana to order?

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  1. 16 December, 01:35
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    To find a percentage increase of 15%, you can multiply the original value by 1.15.

    To find a percentage increase of 20%, you can multiply the original value by 1.2.

    117.7 * 1.15 = 135.355

    So if she orders 15% extra tile, she will order around about 135.355 square feet.

    117.2 * 1.2 = 141.24

    And if she orders 20% extra tile, she will order around about 141.24 square feet.

    Any number between those two values will be the amount of tile she might order.
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Home » Mathematics » Mandana is ordering new tile for her kitchen floor. The area of the floor is 117.7 square feet, and she wants to order between 15% and 20% extra of the materials. Which of the following is a reasonable amount of tile for Mandana to order?
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