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4 October, 10:22

Doris uses 8 square pieces of fabric to make one scarf. Each side of a square piece of fabric is 1/4 foot in length. Doris can buy large pieces of fabric that are 1/4 foot long and 2 feet wide. How many large pieces of fabric should she buy to make 7 scarves?

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  1. 4 October, 10:43
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    7 pieces

    Step-by-step explanation:

    Given that,

    length of square pieces of fabric = 1/4 foot

    Doris used 8 of these piece so total fabric used

    8 (l²)

    = 1/2 foot²

    1 scarf area = 1/2 foot²

    7 scarf area = 7 * 1/2 foot²

    = 7/2 foot²

    When Doris uses piece of fabric that is 1/4 by 2 foot

    area of one piece of that fabric = 2 * 1/4

    = 2/4

    = 1/2foot²

    So,

    number of pieces required to make 7 scarfs = (7/2) / (1/2)

    = 7 pieces
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