Answer:
-$2.32
Step-by-step explanation:
Give that
The selling price per ticket is $9
And the number of tickets sold is 500
So,
There is one grand prize, three $300 second prize, and eleven $40 third prizes
We need to find out the expected value of the profit
![= \frac{1}{500} \times 2000 + \frac{3}{500} \times 300 + \frac{11}{500} \times 40\\\\](https://tex.z-dn.net/?f=%3D%20%5Cfrac%7B1%7D%7B500%7D%20%5Ctimes%202000%20%2B%20%20%5Cfrac%7B3%7D%7B500%7D%20%5Ctimes%20300%20%2B%20%5Cfrac%7B11%7D%7B500%7D%20%5Ctimes%2040%5C%5C%5C%5C)
= 4 + 1.8 + 0.88
= 6.68
Now the expected profit is
= $6.68 - $9
= -$2.32
Answer:
use this formula
Step-by-step explanation:
I hope this helps ......
Answer:
r= 15
Step-by-step explanation:
Answer:
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The sum of 14 and a number is 14+x
we know that this equals 17, so: 14+x=17.
Let's substract 14 from both sides:
x=17-14
x=3
so the number is 3.