Answer:
210 minutes
Step-by-step explanation:
there are 60 minutes in an hour multiply 60 by 3 (60x3) will get you 180, than add 30 more for the half and you get 210 minutes in total. Hope that was helpful
Using the weighed mean formula, it is found that Mara's average for the course was of 68.6.
<h3>What is the weighed mean?</h3>
The weighed mean is given by the <u>sum of all elements in a data-set multiplied by it's weight, divided by the sum of the weights</u>.
In this problem, the weights are as follows:
- A quiz has a weight of 1.
- A test has a weight of 2.
- The final examination has a weight of 4.
Hence, her weighed mean is given as follows:

Mara's average for the course was of 68.6.
More can be learned about the weighed mean formula at brainly.com/question/24398353
The answer TMS
Step-by-step explanation:
Answer:
what is the question
Step-by-step explanation:
Answer:
there is no common difference. it is not constant.