The mean is 10 because you will add all the numbers and then divide the answer by 4
The numbers 1 to 72 add up to (1+72) x 72/2 = 73 x 36 = 2628
If we take away what Josh got we have 2628 - 2521 = 107
Pages in a book are odd on the first side and even on the second, so pages 11 and 12 are on the same sheet.
107 / 2 = 53.5 so the missing page had 53 on one side and 54 on the other side.
The remaining pages would have been numbered 1, 2, 3, ..., 51, 52, 55, 56, ... 71, 72
The cost and revenue function of the company are as follows;
- cost function = 350x + 20000
- revenue function = 100x - 20000
<h3>How to find the cost and revenue function?</h3>
It costs them $350 to make each chair, plus fixed costs for operation of $20,000. Therefore,
let
x = number of chair
cost function = 350x + 20000
The company sells a chair for $450. Therefore,
revenue function = 450x - (350x + 20000)
revenue function = 450x - 350x - 20000
revenue function = 100x - 20000
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