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11 August, 00:11

The perimeter of a rectangle is 42 inches. If the width of the rectangle is 6 inches, what is the length? A. 12 inches B. 15 inches C. 21 inches D. 40 inches

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  1. 11 August, 00:28
    0
    Letter ... C, 15 inches
  2. 11 August, 00:40
    0
    Answer: 15 Inches

    Step-by-step explanation:Remember that the Perimeter of a rectangle is the distance around it.

    So,

    Perimeter = Length + Width + Length + Width

    or

    P = 2L + 2W

    If P=42 inches and W = 6 inches,

    42 = 2L + 2 (6)

    42 = 2L + 12

    30 = 2L [subtract 12 from both sides]

    15 = L [divide both sides by 2]

    The length (L) is 15 inches.
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