Hi, I just had this math test, and I didn't understand this question on it.

It had two similar cylinders, one with a radius of 2 and volume 64, and another cylinder with an unknown radius but a volume of 128. I couldn't figure out the radius of the other cylinder, and it's driving me mad! Could anyone help? Thanks.

AMHD doesn't do homework and, unfortunately, that includes questions after you take an exam.

Do you have a formula?

Great advice, Judy! Use the formula for volume of a cylinder and plug in the information you know. Post your answer and we will help you from there.

I finally got a math question semi-right?

I finally got a math question semi-right?

I would have said the same thing!!

I would have said the same thing!!!!
Me too! Judy rocks!

Me too! Judy rocks!
Yes, she does!!

Also keep in mind that the question asks for similar cylinders, which means the radius and height from one to another must follow the same ratio. For instance if the first height is half the height of the second one, then the radius must also be half the length of the second one.

Okay, now Rockin' Judy is lost again.

Also keep in mind that the question asks for similar cylinders, which means the radius and height from one to another must follow the same ratio. For instance if the first height is half the height of the second one, then the radius must also be half the length of the second one.
Yup.
1) radius of 2 and volume 64
2) unknown radius and volume of 128 (64x2).

If pears are 99 cents for 3 and I buy one that would be - carry the 1, no, carry the 3, no...

If pears are 99 cents for 3 and I buy one that would be - carry the 1, no, carry the 3, no ...
99 divided by 3 plus tax and a tip for the bagger..

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She's very popular.

Yes she is...

But now I can't send Awesome Judy a message!! Wahhhhh...