hello15881 hello15881
  • 24-11-2020
  • Mathematics
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The length of a rectangle is the sum of the width and 3. The area of the rectangle is 54 units. What is the width, in units, of the rectangle?

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amirthaa
amirthaa amirthaa
  • 28-11-2020

Answer:

Let a be the width and b the length

a+3=b

a*b=54

a(a+3)=54

a^2+3a-54=0

a=6

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