heathercasteen
heathercasteen heathercasteen
  • 03-05-2017
  • Mathematics
contestada

the mean of 22.3 19.7 25.4 and another number is 23.4 find the missing number

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xcieo
xcieo xcieo
  • 03-05-2017
the way you get the average is add all the numbers and divide it by the amount of numbers there so reverse it 23.4 * 4 - all the numbers should give you the answer ;))

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