Kaykonlyblessed93 Kaykonlyblessed93
  • 14-06-2017
  • Mathematics
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Bought three books. Total bill was 150$ if one book cost him 50% more than the other two books combined what was the price of this more expensive book

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Аноним Аноним
  • 14-06-2017
I  -  1,5x    
II + III  -  x
-------------------------
1) 1,5x + x = 150
    2,5x = 150
    x = 150 : 2,5
    x = 60  (= I + II)
2) 60 * 1,5 = 90 ( $) - answer.
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