He would probably have to walk the dog seven more times
V = l*w*h
20 = 5*w*8
20 = 40*w
divide both sides by 40
20/40 = w
1/2 = w
The width is 1/2 inch
Answer:
128
Step-by-step explanation:
Method A.
The volume of the prism is 2 cubic units.
Each cube has side length of 1/4 unit.
The volume of each cube is (1/4)^3 cubic unit.
The volume of each cube is 1/64 cubic unit.
To find the number of cubes that fit in the prism, we divide the volume of the prism by the volume of one cube.
(2 cubic units)/(1/64 cubic units) =
= 2/(1/64)
= 2 * 64
= 128
Method B.
Imagine that the prism has side lengths 1 unit, 1 unit, and 2 units (which does result in a 2 cubic unit volume.) Since each cube has side length 1/4 unit, then you can fit 4 cubes by 4 cubes by 8 cubes in the prism. Then the number of cubes is: 4 * 4 * 8 = 128
The solution is when they intersect. So to find the answer, set each equation equal to each and solve:
-2x + 3 = x^2 -6x + 3
3 = x^2 -4x + 3
0 = x^2 -4x
0 = x(x-4)
So the solutions are x = 0 and x = 4
Plug in these values into the easier equation to solve for the y's
x = 0 into -2x + 3 gives y = 3
So one solution is (0, 3)
x = 4 into -2x + 3 gives y = -5
So the second solution is (4, -5)
Answer:
$44.89
Step-by-step explanation:
Add 25.15 + 19.74 = 44.89
