SOLUTION: JIM HAS GOTTEN SCORES OF 60 AND 97 ON HIS FIRST TWO TESTS. WHAT SCORE MUST HE GET ON HIS THIRD TEST TO KEEP AN AVERAGE OF 75 OR GRATER ?
Algebra.Com
Question 69952: JIM HAS GOTTEN SCORES OF 60 AND 97 ON HIS FIRST TWO TESTS. WHAT SCORE MUST HE GET ON HIS THIRD TEST TO KEEP AN AVERAGE OF 75 OR GRATER ?
Answer by checkley75(3666) (Show Source): You can put this solution on YOUR website!
(60+97+X)/3=75
60+97+X=3*75
157+X=225
X=225-157
X=68 OR GREATER FRADE IS NEED ED IN THE THIRD TEST TO MAINTAIN AN AVERAGE OF 75 OR GREATER.
PROOF
(60+97+68)/3=75
225/3=75
75=75
RELATED QUESTIONS
A student's course grade is based on one midterm that counts as 15
%
of... (answered by greenestamps)
You have administered a standardized test of manual dexterity to two groups of 10 semi... (answered by Fombitz)
The final mathematics exam at a certain school contains question of equal difficulty, and (answered by greenestamps)
A student is allowed to choose a number at random from counting numbers 60 to 100... (answered by Edwin McCravy)
Scarlett and Heather, the owners of an upscale restaurant in Dayton, Ohio, want to study... (answered by Theo)
1. Which of the following values is NOT equal to 34(58+9)?
A. 34 x 67
B. 58(34+9)
C.... (answered by Fombitz)
1. If a man buys 1 lt of milk for Rs.12 and mixes it with 20% water and sells it for... (answered by edjones)
Hi, i am about to take my final exam and i need to pass this class. Can you tell me what... (answered by richard1234)
Prof. Hardtack gave four Friday quizzes last semester in his 10-student senior tax... (answered by anand1377)