Answer:
x = 7, y = 30 and x = 3, y = 10
Step-by-step explanation:
5x - y = 5, then y = 5x - 5
2y - x^2 = 11
2(5x - 5) - x^2 = 11
10x - 10 - x^2 = 11
-x^2 + 10x -10 = 11
-x^2 + 10x -21 = 0
x^2 - 10x + 21 = 0
(x - 7)(x - 3) = 0
x = 7, y = 30
x = 3, y = 10
Answer:
The difference between their volumes is 
Step-by-step explanation:
The attachment completes the question.
For cube 1:

For cube 2:

Required
The difference in their volumes
First, we calculate the volume of box 1

Substitute 8 for s1


Next, we calculate the volume of box 2

Substitute 6.5 for s2


The difference is then calculated as:




Hence, the difference between their volumes is 
1/2 is equivalent to 5/10 not 2/10