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10 September, 02:53

A rectangle flag had a width of 3 2/3 feet and area of 8 3/4 square feet. Which expression could be used to calculate the length, in feet, of the rectangle

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  1. 10 September, 03:19
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    Pretty sure it's 8 3/4 : 3 2/3.

    Why?

    So say you want to find the length of a rectangle who's area is 6, and the width is 2. You can divide the area by the width to find the length. 6/2 = 3.

    Check: 2 * 3 = 6.

    Back to the original question: 8 3/4 : 3 2/3.

    Improper fractions: 35/4 : 11/3.

    Switch division to multiplication and reciprocal: 35/4 * 3/11.

    35/4 * 3/11 = 105/44.

    Check:

    105/44 * 11/3 = 1155/132 = 35/4 = 8 3/4

    Length = 105/44
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