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lesya [120]
3 years ago
7

The ratio of girls to boys in the junior high band is 5 to 7. At the beginning of year, there were 72 students in the band. By t

he end of the year, the ratio of girls to boys was 3 to 4. If there are now 48 boys in the band, how many girls joined the band during the school year?
Mathematics
2 answers:
Andre45 [30]3 years ago
8 0

Answer:

Your answer will be 36

Step-by-step explanation:

I know that because there were 30 girls in the beginning of school and 6 girls joined band with is 36

rusak2 [61]3 years ago
7 0
Ratio is 5girls:7boys with total 72 students
5+7= 12
72➗12= 6
6(5:7)= 30 girls : 42 boys

New ratio is 3:4 with 48 boys

48➗4= 12

So for girls 3x12= 36

So started with 30 girls ended with 36 girls... 6 girls joined band during the school year.
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