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the width of a rectangle is 4 inches less than its lengths if the perimeter is 20 inches what is the length

User Enfield
by
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1 Answer

2 votes

Answer:

  • The length is 7 inches

Explanation:

Let the length be l.

Then the width is w = l - 4.

The perimeter formula for rectangle is:

  • P = 2(l + w)

Substitute the values and solve for l:

  • 20 = 2(l + l - 4)
  • 10 = 2l - 4
  • 2l = 14
  • l = 7
User Prateek Yadav
by
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