Sunday
April 20, 2014

Homework Help: writing inequalities

Posted by Anonymous on Sunday, March 18, 2007 at 12:01am.

you must have an average score of at least 80 to get a B on your report card. You have scores of 61,70,99, and 70. What is the minimium score you must get on the last test to get a B on your report card?

the minimum score you can make and recieve an 80 is 100

The minimum score does not require an inequality.

Mean (average) = Sum of scores/N (number of scores)

80 = (61 + 70 + 99 + 70 + X)/5

Solve for X.

I hope this helps a little more. Thanks for asking.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Writing inequalities - you must have an average score of at least 80 to get a B...
math - An employment agency requires applicants average at least 70% on a ...
statistics - In a psychology class of 100 students, test scores are normally ...
math - If a student needs an average of 70 or more to pass a course. She has ...
math - Paul has grades of 73 and 86 on his first two tests. What must he score ...
Math - Professor Smith gives only a midterm exam and a final exam. The average ...
Math 208 - Grade Average A student scores 65 and 82 on two different 100-point ...
College Planning - We got our PSAT scores back today. I'm a bit concerned about ...
Statistics - 5. Scores on a recent national statistics exam were normally ...
Math/Algebra - In a certain game, each of 5 players received a score between 0 ...

Search
Members