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Which of the equations is the correct representation of the following word problem

A student has two grades of 80 and 90. what grade must the students make on the next test to pass the class with a 90 grade average?

(80+90+n)/3=100

(80+90+90)/3=y

(80+90+z)/3z=90

+80+90+x)/3=90​

User NoNameZ
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2 Answers

5 votes

Answer:

(80+90+x) /3 =90

Explanation:

User MathieuMaree
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3 votes

Answer: (80+90+z)/3=90

Explanation:

User Petronila
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