megaroo300042
megaroo300042 megaroo300042
  • 13-07-2020
  • Mathematics
contestada

The length of a rectangle is 5M more than twice the width and the area of the rectangle is 63M to find the dimension of the rectangle

The length of a rectangle is 5M more than twice the width and the area of the rectangle is 63M to find the dimension of the rectangle class=

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miromirna00
miromirna00 miromirna00
  • 13-07-2020

Answer:

width = 4.5 m

length = 14 m

Step-by-step explanation:

okay so first you right down that L = 5 + 2w

then as you know that Area = length * width so you replace the length with 5 + 2w

so it's A = (5 +2w) * w = 63

then 2 w^2 + 5w - 63 =0

so we solve for w which equals 4.5 after that you solve for length : 5+ 2*4.5 = 14

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