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28-01-2015
Mathematics

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If the ratio of red hair bands to green hair bands is 5 to 9 with a total of 70, how many are green

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28-01-2015

[tex]5x-\ red\\9x-\ green\\\\5x+9x=70\\ 14x=70\ \ \ | divide\ by\ 14\\\\ x=5\\\\ 9x=9*5=45\\\\ There\ are\ 45\ green.[/tex]

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