The answer would be 272 because youre trying to find the decrease which is
340x.20 because you always move the percent over two decimals. you would get 68 after multiplying it then u would subtract that number by 340.
There's not enough info in this problem to solve it.
Mean = (total of contributors) / (number of contributors)
For the 6 people in the room, you have
40 = (total of contributors) / 6
(total of contributors) = 6*40 = 240
A 60-year-old left the room, decreasing the total of contributors by 60.
(new total of contributors) = (total of contributors) - 60
(new total of contributors) = 240 - 60 = 180
Then the new mean is
(new mean) = (new total of contributors) / (new number of contributors)
(new mean) = 180 / 6 = 36
The mean age of the remaining 5 people is 36.
Is it radius or circumference?
