Asked by cindy

franklin school has 3 boys for every four girls in the fifth grade. there are 140 students in the fifth grade.
a.how many are boys?
b.how many are girls?

Answers

Answered by UNKNOWN
Add the ratio
3+4=7
So each part of the ratio is worth 7.
so then divide 140 by 7 = 20
Now we know there were 3 boys for every 4 girls
So the amount of boys in the school = 20 multiply by 3 = 60
The amount of girls in the school= 20 multiply by 4 = 80
So add 80 + 60= 140 so you got back what you started with
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