Answer: -120
Step-by-step explanation:
this would be the answer because if you take a positive and add it to a negative you get zero if their the additive inverse of the number.
To find the answer to your question you would have to divided 168 and 28
And when you do that you will get 6 so the answer is 6 bags
Answer:
Each person would pay $15.71
Step-by-step explanation:
First we can calculate how much everyone ate by multiplying the bill amount by 120% (20% tip and 100% of the bill).
$52.35 * 120% = $62.82
Now to find out how much each pays, we have to divide that cost by the number of people (4).
$62.82/4 = $15.71
Answer:
To use a paired t-test
Step-by-step explanation:
t-tests are essentially tests carried out to compare two different groups to check if there is a major difference in their performances or results which may be related in certain characteristics.
A paired (correlated) t-test is used when there are matched pair of similar units or instances of repeated measurements.
In this case, Mary has to use a paired t-test because the samples (students) have high similarity in characteristics. The students in question has to be from the same class to test her hypothesis (similar characteristics).
(2, 4) is the correct answer
