Answer:
$166.42.
Step-by-step explanation:
We have been given that the price of the cell phone is expected to increase by 165% in September 2015. The current price of a cell phone is $62.80.
The price of cell phone in September 2015 will be $62.80 plus 165% of $62.80.
Therefore, the predicted cost of a cell phone in September 2015 will be $166.42.
Answer:
i believe the answer is b
Answer:
x < 16
Step-by-step explanation:
Let the number be x
Four time the number = 4x
Eight less than four times the number = 4x - 8
Eight less than four times the number is less than 56,
that is , 4x - 8 < 56
4x - 8 + 8 < 56 + 8 [ adding both sides by 8 ]
4x + 0 < 64
4x < 64 [ divide both sides by 4 ]
x < 16
Answer:
1. 0.1684 = 16.84%.
2. 0.2568 = 25.68%
3. 0.0013 = 0.13%
4. 0.0126 = 1.26%.
Step-by-step explanation:
For each person, there are only two possible outcomes. Either they have blood that is Group O, or they do not. The probability of a person having blood that is Group O is independent of any other person, which means that the binomial probability distribution is used to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
In which is the number of different combinations of x objects from a set of n elements, given by the following formula.
And p is the probability of X happening.
45% of them have blood that is Group O
This means that
Question 1:
This is P(X = 6) when n = 16. So
So 0.1684 = 16.84%.
Question 2:
This is P(X = 3) when n = 8. So
So 0.2568 = 25.68%.
Question 3:
This is P(X = 16) when n = 20. So
So 0.0013 = 0.13%.
Question 4:
This is P(X = 9) when n = 11. So
So 0.0126 = 1.26%.
Answer:
−4
Step-by-step explanation: