SOLUTION: john has taken three exams in math 11 this semester. His average grade is 84. The highest grade is 18 points more than the average of the two lower grades, and his lowest grade is
Algebra.Com
Question 1117042: john has taken three exams in math 11 this semester. His average grade is 84. The highest grade is 18 points more than the average of the two lower grades, and his lowest grade is 15 points less than the average of the two higher grades. What scores did he get for the three exams?
Answer by josgarithmetic(39614) (Show Source): You can put this solution on YOUR website!
---
three exams in math 11 this semester. His average grade is 84. The highest grade is 18 points more than the average of the two lower grades, and his lowest grade is 15 points less than the average of the two higher grades. What scores did he get for the three exams?
---
first second third, x, y, z
-
-
-
-
system to use:
---
---
--------highest score
----
Returning to , and substituting for z,
--------expected to be lowest score
.
RELATED QUESTIONS
Fifty four percent of the students grade will come from regular exams, 30% from the final (answered by Fombitz)
After ten tests, Bryan’s average test grade was 84. His teacher decided to drop each... (answered by richwmiller,drk)
Maria has taken five tests in each subject this semester.
Match each subject with the... (answered by JulietG)
If my sons final grade in math is a 44% and his online grade for make up math is an 84%... (answered by solver91311)
Mark wants to have a semester average of 85 in his math class. The three 6-week grades... (answered by checkley71)
On five exams, Alex has scored 84, 86, 71, 91, and 98 points out of 100. He wants to... (answered by checkley77)
On five exams, Alex has scored 84, 86, 71, 91, and 98 points out of 100. He wants to... (answered by checkley77,ankor@dixie-net.com)
Josh wants to learn a minimum grade of an 85 this semester in algebra. His test and class (answered by ramkikk66)
im taking a class with 4 exams The first two exams are worth 15 points; the third 20... (answered by richwmiller)