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28.01.2022 •
Mathematics
9. The ratio of boys to girls in a school is 4 to 3. If there are a total of 195 girls in the school, how many total students are in the school?
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Ответ:
455
Step-by-step explanation:
boys to girls 4:3 195/3= 65 is 1 part
boys= 65 x 4= 260
260+195=455
Ответ:
Lets Reduce:
21/7=3 so we know for every 3 in 18/21 we have one in x/7
This means 6/7=18/21
Check:
18/6=3
21/7=3