SOLUTION: Sarah hands in her 4th exam. The scores on her first three exams were 75,95, and 97. What does she need to earn on her 4th exam to average at least a 90 on the 4 exams? Construc
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Question 99777: Sarah hands in her 4th exam. The scores on her first three exams were 75,95, and 97. What does she need to earn on her 4th exam to average at least a 90 on the 4 exams? Construct an inequality with the variable x representing her 4th exam score, then solve the inequality for x.
Found 2 solutions by Adam, PJaaah5:
Answer by Adam(64) (Show Source): You can put this solution on YOUR website!
Look at problem 99699. It is the same problem only numbers are different. I hope you are not solving it for yourself :-D.
Answer by PJaaah5(1) (Show Source): You can put this solution on YOUR website!
Looking at problem 99699, I am to desyppher that the problem would be this.
(75 + 95 + 97 + x) / 4 = 90
75 + 95 + 97 = X = 90 * 4
x= 360-75-95-97
x = 93
Sarah needs to score at least a 93 on the 4th exam.
Does this look right?????
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