SOLUTION: If 70% of the class is girls and there are 63 girls in the class how many pupils are in the class?

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Question 840149: If 70% of the class is girls and there are 63 girls in the class how many pupils are in the class?
Answer by ewatrrr(24785) About Me  (Show Source):
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Hi

If 70% of the class is girls and there are 63 girls in the class 

how many pupils highlight_green%28x%29are in the class?

 .70x+=+63

       x+=+63%2F.70+ = 90 in the class