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Mathematics, 01.03.2020 06:07 brandyjune9546

FOR 20 POINTS
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 student make on the next test to pass the class with a 90-grade average?

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

(80 + 90 + x)/3 = 90

(80 + 90 + n)/3 = 100

(80 + 90 + 90)/3 = y

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