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mezya [45]
2 years ago
6

Please Help Giving Brainlist!!!!! Given that the area of rectangle IJKL is 490 units^2, what are its length and width?

Mathematics
2 answers:
sergiy2304 [10]2 years ago
6 0
  • LB=490
  • 8x×5x=490
  • 40x²=490
  • 4x²=49
  • (2x)²=7²
  • 2x=7
  • x=7/2
  • x=3.5

  • L=8(3.5)=28units
  • B=5(3.5)=17.5units
Pavel [41]2 years ago
5 0

Answer:

Option 4

Step-by-step explanation:

Equating given length and width to the area :

  • 8x(5x) = 490
  • 40x² = 490
  • x² = 490/40
  • x² = 12.25
  • x = 3.5

Finding the dimensions :

  • length = 8x = 8(3.5) = 28 units
  • width = 5x = 5(3.5) = 17.5 units
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