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3 years ago

The ratio of boys to girls in a class is 3:4. There are 35 students in the class. How many students are boys?

Mathematics

1 answer:

cricket20 [7]3 years ago

6 0

Answer:

15 boys and 20 girls

Step-by-step explanation:

1. Since we cant simplify 3:4 we will leave it just like that.

2. 3x+4x=35

3. We add them both to give us 7x=35

4. We divide by 7 to get x by itself which results in 35/7=5.

x=5

5. Now we found x we can create 2 seperate soulutions:

3(5)=

and 4(5)=

Therefore there are 15 boys and 20 girls in the class. This makes sense because 15/20 reduced is 3 over 4.

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Alternatively, you can find the area of each individual shape and add them all up.

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