Using proportions, it is found that:
- Peter is walking at a rate of 3 km/h.
 - MJ is biking at a rate of 9 km/h.
 
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- Peter is walking at a rate of x km/h.
 - MJ is biking 6 km/h faster than Peter, thus 6 + x km/h.
 - Opposite directions, thus, their distance increases at a rate of (6 + 2x) km each hour, as 
. 
6 + 2x km each hour, 18 km after 1.5 hours, thus, the rule of three is:
1h - (6 + 2x) km
1.5h - 18 km
Applying cross multiplication:






Then:
- Peter is walking at a rate of 3 km/h.
 - MJ is biking at a rate of 9 km/h.
 
A similar problem is given at brainly.com/question/24112433
 
        
             
        
        
        
6 and 9 is the dumbest answer I can think of I’m just trying to get 100%
        
             
        
        
        
Answer:
1,632(
Step-by-step explanation:
I did 34,284/252 to figure out the # of groups with 252 people
I got 136.04-- rounded it to 136
I then multiplied 136*12=1,632
so 1,632 people have type A blood