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9 February, 05:31

2. The average temperature for 3 days was 20°. What must the temperature be on the fourth day to raise the average

temperature for the four days to 20.5°?

+3
Answers (1)
  1. 9 February, 07:37
    0
    22

    Step-by-step explanation:

    20.5x4=82

    82 - (20x3) = 82-60=22

    22
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