The volume would be V = (side of base)^2 * (height). The height would be 3. To see this, make yourself a model if need be. Assuming that the dimensions of the "square piece of cardboard" are x by x, then the length (or the width) of a side of the square bottom would be x-3-3, or x - 6.
So: V = (x-6)^2*3 = (area of base)*(depth of box)
= 3(x-6)^2 (answer)
Answer:
B.less cakes
Step-by-step explanation:
If she keeps making 20 cakes she will lose profit.
If she makes more she will lose profit.
She has to make less cakes to stop losing profits.
So the answer is B. Make less Cakes
Answer:
125.55 m.
Step-by-step explanation:
We need to find the volume of the bricked wall.
= total volume - volume of the windows - volume of the gateway.
= 4 * 0.4 * L - 2 * 2.5 * 1 * 0.4 - 2 * 3 * 0.4 m^3. (where L is the length of the wall).
Also this volume = number of bricks * volume of 1 brick
= 24560* 0.2^3.
So
4 * 0.4 * L - 2 * 2.5 * 1 * 0.4 - 2 * 3 * 0.4 = 24560* 0.2^3
1.6L - 2 - 2.4 = 196.48
1.6L = 200.88
L = 125.55 m.