5x + 4x = 720
9x = 720 (divide by 9)
X= 80
In order to get the bigger ratio, which is 5, you would substitute x for 80. (I'm bad at explaining)
Work:
5(80)= 400
Answer:
Step-by-step explanation:
Given
there are 50 winning number out of which 40 get $ 100 each and 10 wins $ 1000 .
let x denotes the winning from a randomly selected ticket


Expected value is given by


and Expected return is given by


Answer:
1/3
Step-by-step explanation:
The inverse is the opposite of a number.
Answer:
Um it might be 1 but feel free to correct me if I'm wrong