X=width of a coccer pitch
2x-20=length of a soccer pitch
Area (rectangule)=length x width
We suggest this equation:
x(2x-20)=6000
2x²-20x=6000
2x²-20x-6000=0
x²-10x-3000=0
We solve this quadratic equation:
x=[10⁺₋√(100-4*1*-3000)]/2=[10⁺₋√(100+12000)]/2=
=(10⁺₋110)/2
we have two solutions:
x₁=(10-110)/2=-50, invalid solution.
x₂=(10+110)/2=60
x=60
2x-20=2(60)-20=120-20=100
Solution: the length is 100 m, and the width is 60 m.
To check:
Area=100 m*60 m=6000 m²
The twice of width is =2(60 m)=120 m,
20 m less than twice its width is: 120 m-20 m=100 m=the length.
Answer:
Volume calculator helps you find the volume of common ... The volume calculator will calculate the volume of some of the most ... cubic inches, 1, 5.79 10-4, 2.1 10-5, 4.3 10-3, 3.7 10-3, 3.6 10-3, 10-4 ... Rectangular solid (volume of a box) = lwh , where l is the length, w is the width and h is the height (a ...
Step-by-step explanation:
Answer: you got this
Step-by-step explanation:
The answer would be 303.62 if I’m not mistaken
