I need help.

Question

Jose's math grade is the mean of his three exams. His grades for the forst two exams were 82 and 93. What grade must he earn on his third exam to have an adverage greater than 90 for the class? Express your answer as a compound inequality. Keep in mind any constraints on the variable.

Answer 1

 

Let T be the third exam grade ?

 

so,

 

(82 + 93 + T)/3 > 90

 

175 + T > 270

 

T > 270 - 175

 

T > 95