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saveliy_v [14]
4 years ago
9

For every girl taking classes at the martial arts school, there are 3 boys who are taking classes at the school. If there are 23

6 students taking classes, write and solve a proportion to predict the number of boys taking classes at the school. How do you answer this? Help please!
Mathematics
1 answer:
valentinak56 [21]4 years ago
7 0
3/4 = x/236

177 boys
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we have

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we know that

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so

in this problem

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x^{2} +2x=15

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x^{2} +2x+1=15+1

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