Answer:
This means the mock-up tank has a volume 216 times smaller than the initial tank.
Step-by-step explanation:
The ratio between volume is given by

This means the mock-up tank has a volume 216 times smaller than the initial tank.
Of means multiplication and Is means equals. So 0.81x =405
X = 500
Last one and first. You can find out why by isolating the cube root and cubing both sides.
Answer: the length is 8
Step-by-step explanation:
10 / (2/5)...when dividing with fractions, flip what u r dividing by, then multiply
10 * 5/2 = 50/2 = 25...so there are 25 of them