Question

Cylinder A has a radius of 7 inches and a height of 5 inches. Cylinder B has a volume of 490π. What is the percent change in volume between cylinders A and B?

Cylinder B is 50% smaller than cylinder A.

Cylinder B is 75% bigger than cylinder A.

Cylinder B is 150% smaller than cylinder A.

Cylinder B is 100% bigger than cylinder A.

Answer 1

@xiphoidx

Answer 2

@sweetburger

Answer 3

@Koikkara

Answer 4

@zepdrix

Answer 5

@triciaal

Answer 6

Were you able to get a number for the Volume of A?

Answer 7

nope

Answer 8

Volume of a cylinder is ummmm....

Answer 9

Area of the base, times the height.
So,\[\Large\rm V=\pi r^2 h\]

Answer 10

For Cylinder A, \(\Large\rm r=7,~h=5\).
What do you get for your Volume when you plug those values in?

Answer 11

769.6902001

Answer 12

leave pi as pi

Answer 13

ok well then i got 245

Answer 14

cylinder A compared to Cylinder B = 245pi to 490pi to express as as percent multiply by 100 set up a ratio and simplify