Question

Mary wants to fill in a cylinder vase. At the flower store they told her that the vase should be filled 3/4 for the flowers to last the longest. Her cylinder vase has a radius of 4 inches and a height of 10 inches. How much water should Mary pour into the vase?

Answer 1

v=hpir^2
we want 3/4 of volume so multiply the volume by 3/4 later

height=10
radius=4
v= 10pi4^2
v=10pi16
v=160pi
3/4 of 160pi=120pi cubic inches of water
aprox 377 cubic inches of water