SOLUTION: 17 students in a class average 92% and 8 students average 84% on the same math exam, what is the average in percent of all the students?

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Question 895274: 17 students in a class average 92% and 8 students average 84% on the same math exam, what is the average in percent of all the students?
Answer by mark_henrhiz(40) About Me  (Show Source):
You can put this solution on YOUR website!
x%2F17+=+0.92
x+=+0.92%2A17
y%2F8+=+0.84
y+=+0.84%2A8
%28x%2By%29%2F%2817%2B8%29+=+%280.92%2A17+%2B+0.84%2A8%29%2F25
%28x%2By%29%2F%2817%2B8%29+=+22.36%2F25
0.8944*100=89.44%