Register
8. There are three exams in a marking period. A student received grades of 75 and 81 on the first two exams. What grade must the student earn on the last exam to get an average of no less than 80 for the
219k views
3 votes
8. There are three exams in a marking period. A student received grades of 75 and 81 on the first two exams. What grade must the student earn on the last exam to get an average of no less than 80 for the making period?

User Hani Honey
by
5.0k points

2 Answers

3 votes

Answer:

84 and more

Explanation:

84+81+75

=240

240/3

=80

User SkidRunner
by
5.2k points
1 vote
80*3= 240
Meaning all 3 averages must add up to 240, in order for it to be 80 or more.

75+81= 156
240-156= 84

The student must earn an 84
User Davies Odu
by
5.0k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

5.4m questions

7.1m answers

Other Questions

What is the slope of a line that is parallel to the line y = x + 2?
If you received $175.85 on $314 invested at a rate of 7% for how long did you invest the principal?
Help me out with this one , I am kind of lost
The table below shows the height (in inches) and weight (in pounds) of eight basketball players. Height 67 69 70 72 74 74 78 79 Weight 183 201 206 220 226 240 253 255 About how many pounds would you expect
What is 3,897.003 in expanded form
Link Copied!