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Math 8 - HELP!!!!!

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Ratio, Proportions, and Similarity

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A room is 36 ft long and 18 ft wide. What is the length to width ratio?

  • Math 8 - HELP!!!!! - ,

    36/18 = 2/1 = 2:1

  • Math 8 - HELP!!!!! - ,

    Ratio, Proportions, and Similarity
    Similar Figures

    An isosceles triangle has a base of 8 inches and legs measuring 12 inches. How wide is the base of a similar triangle with legs measuring 36 inches?
    36 x 8 = 288/12 = 24

    right...???

  • Math 8 - HELP!!!!! - ,

    Right.

  • Math 8 - HELP!!!!! - ,

    Ratio, Proportions, and Similarity
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    A photo that is 8 in. wide and 12 in. long is enlarged to a poster. If the width is enlarged to 24 in., what is the length of the poster?

    24 x 4 = 48/12 = 4

    right....????

  • Math 8 - HELP!!!!! - ,

    No. That answer doesn't make any sense. The length must be a lot longer than 12 in.

  • Math 8 - HELP!!!!! - ,

    12 x 8 = 96/24 = 4

    right...?

  • Math 8 - HELP!!!!! - ,

    or...

    12 x 24 = 288/8 = 36

  • Math 8 - HELP!!!!! - ,

    Which is the only answer that makes sense?

  • Math 8 - HELP!!!!! - ,

    the second one

  • Math 8 - HELP!!!!! - ,

    Of course.

  • Math 8 - HELP!!!!! - ,

    Ratio, Proportions, and Similarity

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    Clyde makes a copy of an 8 in. x 10 in. photo, reducing it to 3/4 of its size. What are the dimensions of the new photo?

    Ok... I REALLY don't get this question..
    Please help...

  • Math 8 - HELP!!!!! - ,

    3/4 * 8 = 24/4 = 6

    3/4 * 10 = ?

  • Math 8 - HELP!!!!! - ,

    7 1/2?

  • Math 8 - HELP!!!!! (question) - ,

    why can you just multiply 3/4 and 10 to get the answer?

    why 3/4 * 8 = 24/4 = 6...??

  • Math 8 - HELP!!!!! - ,

    Because you've reduced the size to 3/4 of its original size.

  • Math 8 - HELP!!!!! - ,

    oh ok

    THANK YOU! :)

    please reply my other math post

    thank you! :)

  • Math 8 - HELP!!!!! - ,

    You're welcome.

  • ms. sue please reply my math post - ,

    please reply my math post

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