Answer:
Step-by-step explanation:
Let the edge of the cube be a .
Given
Volume V = a³

= 3a² x 2
= 6a²
If a = 40 cm

= 9600 cm³/s .
X = -126/5 or -25.2 or -25 1/5
Answer:
Here use this to help you
Step-by-step explanation:
https://www.geteasysolution.com/4+8x+2.2-10x=
$98.30=5.1a+11.6
98.30-11.6=5a+11.6-11.6
86.7=5a
86.7/5=5a/5
17.34=a
So only 17 people can attend