4-36.
2 answers:
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$9.75
<h3>Further explanation </h3>Given:
- The typical balance on Lucy's credit card is $650.
- The interest rate (APR) on her credit card is 18%.
Question:
How much in interest would you expect Lucy to be charged in a typical month?
The Process:
This problem includes the type of determining simple interest.
where,
- I = simple interest
- P = principal (initial amount)
- r = annual interest rate
- t = time (in years)
This time we will find out how much in interest we would expect to be charged in a typical month.
The data is as follows:
- P = 650
- r = 18% or
or 0.18
- t =
year (one month)
Let us calculate how much in interest we would expect to be charged in a typical month.
Thus the amount of interest we would expect Lucy to be charged in a typical month is $ 9.75.
_ _ _ _ _ _ _ _ _ _
Notes
We must be able to distinguish between simple and compound interest. Please learn about this in the link attached below.
<h3>Learn more </h3>- What interest (in dollars) does he receive annually? brainly.com/question/8192969
- How much will our account accrue to in 9.5 years brainly.com/question/4127036
- What is the total amount owed at the end of the 4 years brainly.com/question/13675435
Answer:
No, the standard deviation for number of pages in a romance novel is six only.
Step-by-step explanation:
First we state our Null Hypothesis, :
= 6
and Alternate Hypothesis, :
> 6
We have taken these hypothesis because we have to check whether our population standard deviation is higher than what editor hypothesized of 6 pages in a romance novel.
Now given sample standard deviation, s = 9 and sample size, n = 25
To test this we use Test Statistics = follows chi-square with (n-1) degree of freedom [
]
Test Statistics = follows
= 54
and since the level of significance is not stated in question so we assume it to be 5%.
Now Using chi-square table we observe at 5% level of significance the will give value of 36.42 which means if our test statistics will fall below 36.42 we will reject null hypothesis.
Since our Test statistics is more than the critical value i.e.(54>36.42) so we have sufficient evidence to accept null hypothesis and conclude that our population standard deviation is not more than 6 pages which the editor hypothesized.