Answer: (x-3)/3
Step-by-step explanation:
You have to multiply the fraction.
Answer: Try putting the positive number and then the negative number after the and like the example.
Step-by-step explanation:
Your answers are right, it could be a glitch.
You would just have to divide 20 and 4.
20/4=5
You can write 5 pages in one day.
Answer:
Step-by-step explanation:
The number of samples is large(greater than or equal to 30). According to the central limit theorem, as the sample size increases, the distribution tends towards normal. The formula is
z = (x - µ)/(σ/√n)
Where
x = sample mean
µ = population mean
σ = population standard deviation
n = number of samples
From the information given,
µ = 22199
σ = 5300
n = 30
the probability that a senior owes a mean of more than $20,200 is expressed as
P(x > 20200)
Where x is a random variable representing the average credit card debt for college seniors.
For n = 30,
z = (20200 - 22199)/(5300/√30) =
- 2.07
Looking at the normal distribution table, the probability corresponding to the z score is 0.0197
P(x > 20200) = 0.0197
Answer:

Step-by-step explanation:
we know that
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form
or 
in this problem
For x=32, y=-4
Find the value of the constant of proportionality k

substitute

simplify

so
The linear equation is

Find x when the value of y=0
Remember that
In a proportional relationship <u><em>the line passes through the origin</em></u>
so
If y=0
then
the value of x must be equal to zero
therefore
