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there are 28 students in a classroom. the ratio girls to boys 4 to 3. write and solve a proportion to find how many boys are there in the classroom? include labels!!!!​

User Alemv
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2 Answers

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Final answer:

To find the number of boys in a classroom with a ratio of girls to boys of 4 to 3 and a total of 28 students, you set up a proportion and solve for x, concluding there are 12 boys in the class.

Step-by-step explanation:

The student is asking to solve a proportion to determine the number of boys in a classroom where the ratio of girls to boys is 4 to 3, and there are a total of 28 students. First, we need to set up the ratio as a proportion:

Let x be the number of boys in the classroom. The number of girls would then be 28 - x, because the total number of students is 28.

The ratio of girls to boys is 4 to 3, which means:


(28 - x) / x = 4 / 3

Now we can solve for x by cross-multiplying:


3(28 - x) = 4x

84 - 3x = 4x

84 = 7x

x = 12

There are 12 boys in the classroom.

User Bwawok
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Total = 28

Girls. Boys.
4. 3

28/4= 7
7 x 3 = 21

ANSWER = 21
User Andyandy
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