10/21/12

2 comments:

  1. 100% - 65% = 35% did not attend the field trip

    0.35 x 320 = 112 students

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  2. Total angle inside the triangle is 180
    using trial and error, estimating that it is near 180/3 = 60 (equal angles)
    11 x 5 = 55
    12 x 5 = 60
    13 x 5= 65 answer

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