Answer:
15.82
Step-by-step explanation:
V = l*w*h
plug in: (we know length is twice width, so we can say length is 2w)
500 = 2w*w*4
[tex]500=8w^2[/tex]
[tex]62.5=w^2[/tex]
[tex]w=\sqrt{62.5}[/tex]
w=7.91
Now knowing width, we can just double it to get length:
[tex]7.91*2 = 15.82[/tex]
