Answer:
25%
Step-by-step explanation:
Percent change = 100 - 80
|80|
x 100 = 20
80
x 100 = 25
Answer:
>
Step-by-step explanation:
3^-1 = .33333333
1/4 = .25
Answer:
3000 minutes
Step-by-step explanation:
20 x 3 = 60 minutes
60 minutes = 1 hour
1 x 3 = 3km
3km = 1 hour
3 x 1000 = 3000 meters
Ans: 3000 meters
Answer:
The spinner has 6 equal-sized slices, so each slice has a 1/6 probability of showing up.
I guess that we want to find the expected value in one spin:
number 1: wins $1
number 2: wins $3
number 3: wins $5
number 4: wins $7
number 5: losses $8
number 6: loses $8
The expected value can be calculated as:
Ev = ∑xₙpₙ
where xₙ is the event and pₙ is the probability.
We know that the probability for all the events is 1/6, so we have:
Ev = ($1 + $3 + $5 + $7 - $8 - $8)*(1/6) = $0
So the expected value of this game is $0, wich implies that is a fair game.
Step-by-step explanation:
(c)
By area of similar triangle theorem:
