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sveticcg [70]
2 years ago
9

In this year’s 7th grade class, there are 4 boys for every 5 girls. How many girls are in the class if there are 20 boys in the

class?
Mathematics
2 answers:
Charra [1.4K]2 years ago
7 0

Answer:

No. of girls  =25

Step-by-step explanation:

Ratio of boys: girls = 4:5

No. of boys = 4x

No. of girls = 5x

4x = 20    ( No.of boys = 20)

   x = 20/4

    x = 5

No. of girls = 5x = 5 * 5 =25

Harlamova29_29 [7]2 years ago
3 0

Answer:

25girls

Step-by-step explanation:

4b=5g

20b=25g

4b/20b=5g/?

5g x 20b=100

100/4b=25g

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Step-by-step explanation:

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