Answer:
The expected winning is + $2.17
Step-by-step explanation:
Here, we want to calculate the expected winnings for the game
The number of possible results are;
1,2,3,4,5,6
Probability of each value is 1/6
So expected pay off is as follows;
1/6(5) + 1/6(3) + 1/6(5) + 0
= 5/6 + 3/6 + 5/6
= 5/6 + 5/6 + 1/2 + 0
= 10/6 + 1/2 = 5/3 + 1/2 = (10 + 3)/6 = 13/6 = 2.1667
Answer:
x = 0.00559234073 for 1 second
x = 0.0111846815 for 2 seconds
Step-by-step explanation:
We first need to know that 1 mile = 1609.344 meters to get one unit to use or else it'll be confusing.
For 1 second, x will be replaced by 1.
So:
y=9(1)
y=9
And for 2 seconds, x will be replaced by 2.
So:
y=9(2)
y=18
These are the measurements in meters. Then, we need to find what it is in miles.
So we can use a proportion for this.
1/1609.344 = x/9
1609.344x = 9
x = 0.00559234073 for 1 second
For 2 seconds:
1/1609.344 = x/18
1609.344x = 18
x = 0.0111846815 for 2 seconds
Answer:
x=28
y= -4
Step-by-step explanation:
9x+6y= -12
-x-4y= -12
multiply -x-4y=-12 by 9 so the x's are equal
9x+6y= -12
-9x-36y= -108
add the equations so the x's cancel out
-30y=120
y= -4
plug y into an equation to find x
-x-4(-4)=-12
-x+16= -12
-x= -28
x=28