Answer:
20 and 5
Step-by-step explanation:
20+5=25
20÷5=4
Answer:
D 3 3/4 and 7/10
Step-by-step explanation:
A) 2 3/8 and 3/4
4 goes into 20 evenly but 8 does not
NO
B) 1 5/6 and 2/5
5 goes into 20 evenly but 6 does not
NO
C) 4 1/3 and 1/4
4 goes into 20 evenly but 3 does not
NO
D) 3 3/4 and 7/10
4 goes into 20 evenly and 10 goes into 20 evenly
YES 3 3/4 = 3 15/20 and 7/10 = 14/20
Answer:
0.6517
Step-by-step explanation:
Given that in a certain game of chance, your chances of winning are 0.3.
We know that each game is independent of the other and hence probability of winning any game = 0.3 (constant)
Also there are only two outcomes
Let X be the number of games you win when you play 4 times
Then X is binomial with p = 0.3 and n =4
Required probability
= Probability that you win at most once
= 
We have as per binomial theorem
P(X=r) = 
Using the above the required prob
= 0.6517
-(-2)^4 = 16
The - sign multiplies inside the bracket to a positive, 2^4 = 16