Question

The playing field below is 50 feet wide and has an area of 2100 square feet. What is the value of x? A. 6B. 7C. 42D. None of the above❥I would appreciate the help❦

Answer 1

Step-by-step explanation:

The area of this playing field is its width times its length. The length of the field is:

`L=x+3x+2x=6\text{xft}`

And its width is 50ft, so the area is:

`A=50ft\cdot6\text{xft}=300\text{xft}^2`

And we know that the area is 2100 ft², so we can replace that into the expression above and solve for x:

`\begin{gathered} 2100=300x \\ x=(2100)/(300)=7 \end{gathered}`

x = 7

Answer:

The answer is option B. 7