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scoray [572]
3 years ago
11

Pls help me I will mark the best answer with brainliest and give 50 points​

Mathematics
2 answers:
Nat2105 [25]3 years ago
5 0

Answer:

A = 31*19 = 589 square feet:

Levart [38]3 years ago
3 0

Answer:

  • A. 31 and 19 feet
  • B. 589 square feet

Step-by-step explanation:

<h3>Part A</h3>

<u>Perimeter formula:</u>

  • P = 2(l + w)

<u>Given</u>

  • l = w + 12
  • P ≤ 100

<u>Substitute l in perimeter formula and solve for w:</u>

  • 2(w + 12 + w) ≤ 100
  • 2w + 12 ≤ 50
  • 2w ≤ 38
  • w ≤ 19

Maximum width is 19 feet and the length is 19 + 12 = 31 feet. In this case all fencing will be used.

<h3>Part B</h3>

<u>With l = 31 and w = 19, the area is:</u>

  • A = lw
  • A = 31*19 = 589 square feet
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