Answer:
-5 is the coefficient of b
To find the total number of hours that Jerry played with his friends, you will add the amount of times he played with each.
7/8 hour+ 3/4 hour + 3/2 hours; create fractions with common denominators.
7/8 + 6/8 + 12/8
25/8 = 3 1/8 hours.
Jerry played with his friends for 3 1/8 hours.
Answer:
5 days
Step-by-step explanation:
20 + 8(5) = 60
50 + 2(5) = 60
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).
The answer is y-9,27 is 3