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Submitted by dunnkyler on Wed, 2012-02-22 17:21
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# There are 12 boys and 15 girls in a class. What percent of the students in the class are girls?

There are 12 boys and 15 girls in a class. What percent of the students in the class are girls?

Submitted by Coloratus on Wed, 2012-02-22 20:23
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## Complete answer with full step-by-step explanations

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xx xx mark with x the xxxxxx xx girls xx = 15) xxx xxx xxxxxx xx xxxx xxxx xx x 12), xx can xxxxx that the xxxxxxxxxx of xxxxx xxx

xxxx = G / (G + xx

p(G) = xx / (12 + xxx

p(G) x xx / xx

p(G) x xxxxxx

p(G) x 0.5555 * xxxx

p(G) = xxxxxx

Submitted by Doctor on Thu, 2012-02-23 05:28
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## 500/9 % - details below.

> There are 12 boys and 15 girls in a class.

Students means the sum of boys and girls of the class:

Since there are 12 boys and 15 girls, there are 27 students in the class.

> What percent of the students in the class are girls?

girls-to-students-ratio: 15/27 = 5/9

If you want to convert this number into percents then remember that

100 % = 1

Hence you only need to multiply your ratio with 100 % which corresponds to a multiplication by one. Remember: A multiplication by one never changes the value of your term!

Therefore you have:

15/27 = 5/9 = (5/9) * 1 = (5/9) * 100 % = (5*100/9) % = 500/9 % = (55+5/9)% = approx 55.55556 %

Just for the record:

> What percent of the students in the class are boys?

boys-to-students-ratio:

12/27 = 4/9 = (4/9) * 1 = (4/9) * 100 % = (4*100/9) % = (44+4/9)% = approx. 44,44444 %

When adding both values together you get 1=100%.

Proof: 15/27+12/27=27/27=1=100%.

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Submitted by Ali Bin Tariq on Thu, 2012-02-23 04:08
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body preview (15 words)

xxxxxx of boys = xx

xxxxxx of girls x 15

Total xxxxxx xx student x 27

Percentage of girls xxxxxxx x xxxxx x xxx

x 55.56 % xxxxxx

Submitted by Ali Bin Tariq on Thu, 2012-02-23 04:08
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body preview (15 words)

Number xx boys x 12

Number of xxxxx x xx

xxxxx xxxxxx xx xxxxxxx x xx

Percentage of girls student x 15/27 * 100

= xxxxx % xxxxxx

Submitted by Andrein on Wed, 2012-02-22 18:23
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## ≈ 55.56%

body preview (69 words)

xxxxx xx calculate xxx number xx xxxxxxxx xx xxx class, which xx xxx number xx xxxx + the number of xxxxxx

.

xx + xx x xx

x

We xxxx next use xxx xxxx of xxxxxx

If there xxx 15 girls xx a xxxxx of 27 xxxxxxxx xxxx xxxxx xxx x in a xxxxx of 100 xxxxxxxxx

.

xx girls xxxxxxxxxxxxxxxxxxxxxxxxx 27 students

x girls xxxxxxxxxxxxxxxxxxxxxxxxxxxx students

xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

15 * xxx = x * 27 => x x xxxxxxx x> x ≈ 55.56 %

So xxx xxxxxx xxx xxxxxx of xxx xxxxxxxx xx the class xxx girls.