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Introduction to Ratios

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Uploaded by on Mar 3, 2007

Basic ratio problems. (from KhanAcademy.org)

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LICENSE: Creative Commons (Attribution-Noncommercial-No Derivative Works).

For more information about this license, please read: http://creativecommons.org/licenses/by-nc-nd/3.0/.

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  • heh heh heh red balls in a bag.

  • ... how many blue balls... ahemm!! how many green balls...

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  • WHAAATTTTT id get it

  • for the problem at 2:53

  • to clarify guys g is the unknown number in the proportion you cross multiply 40*3=120 so 120=2g then you find g to find it you divide 120 by 2 the answer is 60 so 60=g

    hope that it clears things up

  • Thnkx a l0t....

    ;)

  • Blue balls !!!!

  • You guys may want to check out the Karismath Insights Videos on Ratios on YouTube. Entirely visual, and with a voice-over that explains the process systematically. There are 3 videos on Ratios, with more coming. Start with the Part 1 Video on Ratio.

  • Thanks so much I'm starting to get it

  • just be aware that i am haveing trouble with math in the last two weeks an haveing trouble focusing in the morning an only passing test in the afternoon is this normal

  • 10 boys 2 girls = epic gangbang

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