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19 August, 10:54

The rectangle shown has a perimeter of 58 cm and the given area. Its

length is 4 more than four times its width. Write and solve a system of

equations to find the dimensions of the rectangle.

The length of the rectangle is_cm and the width of the rectangle is _cm.

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Answers (1)
  1. 19 August, 11:44
    0
    Answer:width=5cm length=24cm

    Step-by-step explanation:

    Width=w

    Length=L

    Perimeter = 58

    Perimeter=2L+2w

    2L+2w=58

    There length is 4 more than 4 times it width

    L-4=4w

    L=4w+4

    Substitute L=4w+4 in 2L+2w=58

    2 (4w+4) + 2w=58

    8w+8+2w=58

    Collect like terms

    8w+2w=58-8

    10w=50

    Divide both sides by 10

    10w/10=50/10

    w=5 width is 5cm

    Substitute w=5 in 2L+2w=58

    2L+2 (5) = 58

    2L+10=58

    2L=58-10

    2L=48

    Divide both sides by 2

    2L/2=48/2

    L=24 length=24cm
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