Answer:
18
Step-by-step explanation:
The expected value is the probability times the frequency.
3 = 1/6 × n
n = 18
Note: the use of the word "odds" is very misleading here. Odds are the ratio of number of successes to number of failures:
S / F
Probability is the ratio of number of successes to number of all outcomes:
S / (S + F)
So the probability of rolling a 5 is 1/6. The odds of rolling a 5 is 1/5.
Furthermore, the word "must" is also incorrect. The player didn't <em>have</em> to roll 18 times. They could have rolled three times and gotten a 5 each time. Or they could have rolled 100 times. 18 is simply the most <em>likely </em>number of rolls needed to get three 5's.
9.35 times 10 to the second power
Answer:
47.5%
Step-by-step explanation:
You have to first subtract 80 and 42 to find the decrease first. This is 38. Now, you have to divide this by the original number which is 80. So 38 divided by 80 is 0.475.
Now multiply this by 100.
You can easily move the decimal point to the right.
So you would get 47.5%
Hope this helped!
Answer:
x=26
Step-by-step explanation:
first rewrite the problem since u know that G(x)=-48
-48=-3/2x-9
second you want to add the 9 to -48 which gives u -39
-39=-3/2x
third you want to times the reciprocal so it would be
-2/3 times -39/1
u can cross out the negatives and turn them into a positive
fourth you can cross cancel 3 and 39 which now the problem looks like this
2/1 times 13/1
which you would times 2 and 13 which your answer would be
26
