Step 3: the student missed +4 in the equation while adding both equation
Answer:
42
Step-by-step explanation:
First you subtract 93 by 9. You get 84. Then you divide it by 2. Which is your answer, 42.
This can be represented as:
93=2x+9
First subtract 9 from both sides
84=2x
Then divide by 2 on both sides
42=x
Let's get the amount of people that are in the percent error by multiplying .04 (4%) by 15000.
.04 x 15000 = 600
Now we can add or subtract 600 from 15000.
15000 - 600 = 14400
15000 + 600 = 15600
So your answer would be B, t<span>he actual number of people is either 14,400 or 15,600.</span>
Answer:
0.8743 = 87.43% probability that more than one accident occurs per year
Step-by-step explanation:
In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:
In which
x is the number of sucesses
e = 2.71828 is the Euler number
is the mean in the given interval.
Buchtal, a manufacturer of ceramic tiles, reports on average 3.1 job-related accidents per year.
This means that
What is the probability that more than one accident occurs per year?
This is:
In which
Then
0.8743 = 87.43% probability that more than one accident occurs per year
Answer:
52 years
Step-by-step explanation:
Let
Your age = x
3 times your age = 3 * x
= 3x
The equation can be written as:
400 - 3x = 244
400 - 244 = 3x
156 = 3x
Divide both sides by 3
x = 156/3
x = 52
Therefore,
Your age is 52 years