9- find the ratio for boys to total student -> 5:12
x : 24 = 5 : 12
x = 10 boys
10- 800miles/60 minutes = 160miles/x minutes
x = 12 minutes
Total: 195 = x + (x+25)
195 - 25 = 2x
170 = 2x
85 = x
Therefore, there are 85 boys in 7th grade.
Answer:
im not too sure about that sorry!
Step-by-step explanation:
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