Question

Sean has taken three exams and earned scores of 89, 73, and 90 out of a possible 100 points. He needs an average of at least a B in the course. What range of scores on the fourth (and last) 100-point test will guarantee a B in the course? He needs an average of at least 86 to earn a B in the course.

Name: sean has taken three exams and earned scores of 89 73 and 90 out of a possible 100 points he needs an average of at least a b in the course what range of scores on the fourth and last 100 po 16722
Uploaded: 2022-08-26T17:20:05-08:00
Duration: 2 min 4 s
Channel: Gregory Higby
Description: sean has taken three exams and earned scores of 89 73 and 90 out of a possible 100 points he needs an average of at least a b in the course what range of scores on the fourth and last 100 po 16722

          Sean has taken three exams and earned scores of 89, 73, and 90 out of a possible 100 points. He needs an average of at least a B in the course. What range of scores on the fourth (and last) 100-point test will guarantee a B in the course? He needs an average of at least 86 to earn a B in the course.

Added by Michael Y.

Precalculus with Limits

Ron Larson 2nd Edition

Instant Answer

Solved by Expert Gregory Higby

08/26/2022

Step 1

To earn a B in the course, Sean needs an average of at least 86 on all four exams. Since there are four exams in total, the total points needed for a B is 86 * 4 = 344 points. Show more…

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Sean has taken three exams and earned scores of 89, 73, and 90 out of a possible 100 points. He needs an average of at least a B in the course. What range of scores on the fourth (and last) 100-point test will guarantee a B in the course? He needs an average of at least 86 to earn a B in the course.