Answer:
V=864 cubic feet
Step-by-step explanation:
Volume of a rectangular prism is Length x width x depth
So V=12x8x9
V=864 Cubic feet
*triple phytagoras*
first triangle h = second triangle h = 24 in
x = 7 (triple phytagoras)
M-(M x 0.16) and M-(.84) because the first one you need to multiply to find what 16% of m is then subtract that by m for the second one you subtract.
-4 = y + 3
y = -4x - 3
Solve for Y in the first equation:
-4 = y +3
Subtract 3 from both sides:
y = -7
Now using the addition method:
rewrite the second equation as 4x+y = -3
Multiply y = -7 by - 1 to get -y = 7
Now add the two together:
4x +y = -3
-y =7
4x = 4
Divide each side by 4:
x = 4/4 = 1
Then replace x in one of the equations to solve for y which is -7
X = 1, Y = -7
