To get an A in a course, you must have an average of at least 90 on four tests of 100
Chapter 2, Problem 53(choose chapter or problem)
To get an A in a course, you must have an average of at least 90 on four tests of 100 points each. The scores on your first three tests were 93, 91, and 84.
(a) Write a verbal model for the test average for the course.
(b) What is the least you can score on the fourth test to get an A in the course?
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