Do you want me to simplify it? In that case: -8+9.7z
12x - 5(x+4) = -20
12x - 5x - 20 = -20
7x = 0
x = 0
and since y = x + 4, y = 4
(0,4) is answer
Answer:
The answer would be 512 cubic yards
Step-by-step explanation:
When you have the area of one of the sides, you can multiply it by 8 because it is a cube and that would give you 512. hope this helps :)
Answer:
x = 9/25
y = 7/25
z = 4/25
Step-by-step explanation:
2x + y = 1 .......(1)
3y + z = 1 ........(2)
x + 4z = 1 ........(3)
Elimination 1 and 2
2x + y = 1 | ×3 |
3y + z = 1 | ×1 |
6x + 3y = 3
3y + z = 1
___________--
6x - z = 2 .............. (4)
Elimination 3 and 4
x + 4z = 1 | ×6 |
6x - z = 2 | ×1 |
6x + 24z = 6
6x - z = 2
___________--
25z = 4
z = 4/25
Elimination 3 and 4
x + 4z = 1 | ×1 |
6x - z = 2 | ×4 |
x + 4z = 1
24x - 4z = 8
___________+
25x = 9
x = 9/25
Subsitution 1
2x + y = 1
2(9/25) + y = 1
18/25 + y = 1
y = 1 - 18/25
y = 25/25 - 18/25
y = 7/25
Answer:
18 inches
Step-by-step explanation:
54*1/3=18(inches)
