SOLUTION: 70 percent of students are male. there are 24 female in a class how many men are in a class

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Question 360035: 70 percent of students are male. there are 24 female in a class how many men are in a class
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
Let x = total number of students in class.
Then 0.70x = # of men in the class. But also x -24= # of men in the class, so
0.70x+=+x-24,or
24+=+0.30x, or
x+=+80. Therefore there are 80 - 24 = 56 men in the class.
ALTERNATE SOLUTION:
Let m = # men in the class.
Then m%2F0.70 = total number of students in the class.
This implies that m%2F0.70+-+m+=+24, (Total number of students - number of men = number of women in the class.)
%28m+-+0.70m%29%2F0.70+=+24,
0.30m+=+16.8,
m+=+56, the number of men in the class.