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nexus9112 [7]
2 years ago
9

In the grade 9, the ratio of girls to boys is 17:8. What percent of the grade 9 are boys?

Mathematics
1 answer:
Maurinko [17]2 years ago
3 0

Answer:

32%

Step-by-step explanation:

Let's say there are 17 girls and 8 boys. So there is 25 people in total.

8/25 = 32/100=32%

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Read 2 more answers
Find two positive consecutive odd integers such that square of the smaller integer is 10 more than the larger integer
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Let 2n+1 be the smaller integer. The larger integer is then 2n+3, and we have

(2n+1)^2=10+(2n+3)\implies4n^2+4n+1=2n+13

\implies4n^2+2n-12=0

\implies2n^2+n-6=0

\implies(2n-3)(n+2)=0

\implies 2n-3=0\text{ or }n+2=0

\implies n=\dfrac32\text{ or }n=-2

We omit n=-2, since 2(-2)+1=-3 is negative.

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