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    KyleDennis's Avatar
    KyleDennis Posts: 1, Reputation: 1
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    #1

    Apr 14, 2013, 08:14 AM
    Math Help
    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.
    JudyKayTee's Avatar
    JudyKayTee Posts: 46,503, Reputation: 4600
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    #2

    Apr 14, 2013, 08:31 AM
    AMHD doesn't do homework and, unfortunately, that includes questions after you take an exam.

    Do you have a formula?
    teacherjenn4's Avatar
    teacherjenn4 Posts: 4,005, Reputation: 468
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    #3

    Apr 14, 2013, 08:54 AM
    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.
    JudyKayTee's Avatar
    JudyKayTee Posts: 46,503, Reputation: 4600
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    #4

    Apr 14, 2013, 09:40 AM
    I finally got a math question semi-right?
    teacherjenn4's Avatar
    teacherjenn4 Posts: 4,005, Reputation: 468
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    #5

    Apr 14, 2013, 09:55 AM
    Quote Originally Posted by JudyKayTee View Post
    I finally got a math question semi-right?
    I would have said the same thing!!
    Wondergirl's Avatar
    Wondergirl Posts: 39,354, Reputation: 5431
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    #6

    Apr 14, 2013, 09:57 AM
    Quote Originally Posted by teacherjenn4 View Post
    I would have said the same thing!!!!
    Me too! Judy rocks!
    teacherjenn4's Avatar
    teacherjenn4 Posts: 4,005, Reputation: 468
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    #7

    Apr 14, 2013, 10:12 AM
    Quote Originally Posted by Wondergirl View Post
    Me too! Judy rocks!
    Yes, she does!!
    InfoJunkie4Life's Avatar
    InfoJunkie4Life Posts: 1,409, Reputation: 81
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    #8

    Apr 15, 2013, 08:08 AM
    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.
    JudyKayTee's Avatar
    JudyKayTee Posts: 46,503, Reputation: 4600
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    #9

    Apr 15, 2013, 09:13 AM
    Okay, now Rockin' Judy is lost again.
    Wondergirl's Avatar
    Wondergirl Posts: 39,354, Reputation: 5431
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    #10

    Apr 15, 2013, 09:39 AM
    Quote Originally Posted by InfoJunkie4Life View Post
    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).
    JudyKayTee's Avatar
    JudyKayTee Posts: 46,503, Reputation: 4600
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    #11

    Apr 15, 2013, 09:44 AM
    If pears are 99 cents for 3 and I buy one that would be - carry the 1, no, carry the 3, no...
    Wondergirl's Avatar
    Wondergirl Posts: 39,354, Reputation: 5431
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    #12

    Apr 15, 2013, 09:48 AM
    Quote Originally Posted by JudyKayTee View Post
    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..
    InfoJunkie4Life's Avatar
    InfoJunkie4Life Posts: 1,409, Reputation: 81
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    #13

    Apr 15, 2013, 12:12 PM
    JudyKayTee has exceeded their stored private messages quota and cannot accept further messages until they clear some space.
    Wondergirl's Avatar
    Wondergirl Posts: 39,354, Reputation: 5431
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    #14

    Apr 15, 2013, 12:16 PM
    Quote Originally Posted by InfoJunkie4Life View Post
    JudyKayTee has exceeded their stored private messages quota and cannot accept further messages until they clear some space.
    She's very popular.
    InfoJunkie4Life's Avatar
    InfoJunkie4Life Posts: 1,409, Reputation: 81
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    #15

    Apr 15, 2013, 12:20 PM
    Yes she is...

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