SOLUTION: I have been struggling with this problem and I was wondering if anyone could help me? I would deeply appreicate it. Please and Thank You!!!
Solving Problems Involving Ine
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Question 125845This question is from textbook Algebra Structure and Method
: I have been struggling with this problem and I was wondering if anyone could help me? I would deeply appreicate it. Please and Thank You!!!
Solving Problems Involving Inequalities
Solve.
There are three exams in a marking period. A student recieved grades of 75 and 81 on the first two exams. What grade must the student earn on the last exam to get an average of no less than 80 for the marking period?
This question is from textbook Algebra Structure and Method
Answer by checkley71(8403) (Show Source): You can put this solution on YOUR website!
(75+81+x)/3=80
(156+x)/3=80 now cross multiply
156+x=240
x=240-156
x=84 is the minimum score on the 3 rd exam to have an average of 80.
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