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30 November, 00:30

A rectangle frame has a length of 3 1/8 feet and an area of 2 3/4 square feet. what is the width w, in feet, of the frame?

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Answers (2)
  1. 30 November, 00:46
    0
    A = L * W

    2 3/4 = 3 1/8 * W

    Change to improper fractions.

    11/4 = 25/8 * W

    Multiply both sides by the reciprocal of 25/8 (8/25) to clear the fraction with the W.

    (8/25) (11/4) = W

    88/100 = W

    22/25 = W OR 0.88ft
  2. 30 November, 00:56
    0
    I think you have the area and length swapped if that's true, continue:

    3.125 divided by 2.75 is 1.13 (continues on with 36 repeating)

    this means that 1.13 Feet is the width because you basically take the equation backwards:

    L*W=A

    therefore,

    A/L=W

    or

    A/W=L
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