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k0ka [10]
3 years ago
15

The ratio of boys to girls in my class is 3:4. If there are 12 boys, how many girls are

Mathematics
2 answers:
Scorpion4ik [409]3 years ago
8 0

Answer: 16 girls

Step-by-step explanation:

Number of girls = x

3:4 = 12:x

= 3/4 = 12/x

cross multiply:

4 x 12 / 3 = 16

so there are 16 girls in the class.

Hope this helps :)

bija089 [108]3 years ago
6 0

Answer:

9 girls

Step-by-step explanation:

12/4=3 boys

Multiple 3x3 to get the 9 girls

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