Jc8777
03.11.2020 •
Mathematics
The ratio of boys to girls in my class is 3:4. If there are 12 boys, how many girls are there in my class?
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Ответ:
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 :)
Ответ:
9 girls
Step-by-step explanation:
12/4=3 boys
Multiple 3x3 to get the 9 girls
Ответ: