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meriva
3 years ago
10

PLEASE HELP ME A soccer field is bordered on three sides by a parking lot of width x. The total length of the field and parking

lot is 300 m, and the total width is 200 m.
The area of the field is 30.000 m². How wide is the parking lot?
Mathematics
1 answer:
nlexa [21]3 years ago
3 0

Answer:

Step-by-step explanation:

Assuming the parking lot is along both widths of the field and only once along the length:

 

the length is (300 - 2x)

the width is (200 -x)

the area is (300-2x)(200-x) = 30000

         60000 -300x - 400x +2x^2 = 30000

        2x^2 -700x + 30000 = 0

         x^2 - 350x + 15000 = 0

          (x    -   300    )(x   -    50    ) = 0

             x = 300 or x=50

x=300 results in negative measures.

the parking lot is x=50 wide

the length of the field is 200, the width of the field is 150

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