princehotdog princehotdog
  • 18-09-2020
  • Mathematics
contestada

The area of a football field is 57,600 square feet. If the width of the field is 4/9 the length, what is the length of the football field ?

Respuesta :

mhanifa
mhanifa mhanifa
  • 18-09-2020

Answer:

360 ft

Step-by-step explanation:

Given

  • Area = 57600 ft²
  • Length = x
  • Width = 4/9x

Solution

  • A = lw
  • x*4/9x = 57600
  • 4/9x²= 57600
  • x² = 57600*9/4
  • x² = 129600
  • x = √129600
  • x = 360 ft
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