SOLUTION: Two-thirds of the students in the class got A’s on the last math test. Twelve students did not get an A. How many students are in the class? a) 24 b) 48 c) 36 d) 18 e) 12

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Question 283361: Two-thirds of the students in the class got A’s on the last math test. Twelve students did not get an A. How many students are in the class?
a) 24 b) 48 c) 36 d) 18 e) 12

Answer by Deina(147) About Me  (Show Source):
You can put this solution on YOUR website!
Let x = total number of students

%282%2F3%29+%2A+x+%2B+12+=+x+
+12+=+x+-+%28%282%2F3%29+%2A+x%29
+12+=+%281%2F3%29+%2A+x+

multiply both side by 3
+12+%2A+3+=+%281%2F3%29+%2A+x+%2A+3
36 = x and bob's your uncle!