http://www.youtube.com/watch?v=4ywTWCaLmXE Uploaded on 15 Jul 2011 Learn more: http://www.khanacademy.org/video?v=4y...U04_L2_T1_we3 t2 Find an Unknown in a Proportion 2Content provided by TheNROCproject.org - (c) Mo
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http://www.youtube.com/watch?v=GO5ajwbFqVQ Uploaded on 15 Jul 2011 Learn more: http://www.khanacademy.org/video?v=GO...U04_L2_T1_we2 t2 Find an Unknown in a ProportionContent provided by TheNROCproject.org - (c) Mont
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http://www.youtube.com/watch?v=y_DweTAEYWk Uploaded on 21 Jun 2011 Learn more: http://www.khanacademy.org/video?v=y_...u15_l1_t3_we4 Adding and Subtracting Rational ExpressionsContent provided by TheNROCproject.org -
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http://www.youtube.com/watch?v=hAy_bavEVCQ Uploaded on 21 Jun 2011 Learn more: http://www.khanacademy.org/video?v=hA...u15_l2_t1_we3 Another Take on the Rate ProblemContent provided by TheNROCproject.org - (c) Monter
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http://www.youtube.com/watch?v=-xyTz0WZ1W4 Uploaded on 5 Nov 2009 Learn more: http://www.khanacademy.org/video?v=-x...An alternate solution to the advanced ratio problem in the last video.
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http://www.youtube.com/watch?v=ItA_hhRtUuw Uploaded on 5 Nov 2009 Learn more: http://www.khanacademy.org/video?v=It...More advance ratio problem with algebra. Categ
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http://www.youtube.com/watch?v=96ZEmUbnuU8 Uploaded on 23 Aug 2011 Learn more: http://www.khanacademy.org/video?v=96...Setting up proportions to solve a word problem
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http://www.youtube.com/watch?v=ITVQrzDSekU Uploaded on 5 Nov 2009 Learn more: http://www.khanacademy.org/video?v=IT...A slightly more involved ratio problem with algebra
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http://www.youtube.com/watch?v=5zosU6XTgSY Uploaded on 5 Oct 2011 An introduction to one of the most amazing ideas/numbers in mathematics Category
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http://www.youtube.com/watch?v=AqMT_zB9rP8 Uploaded on 27 Jan 2011 Learn more: http://www.khanacademy.org/video?v=Aq...u11_l3_t2_we2 Subtracting polynomials with multiple variablesContent provided by TheNROCproject.o
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