Use the trip back to calculate total distance. If Brenda drives 30 mph for 6 hours then she has traveled 180 miles. Now we know it is 180 miles from her house to the train station. If she drove this in 5 hours instead, just divide 180 by 5 to get an average speed of 36 mph.
Answer:
it is 2 in 4800
Step-by-step explanation:
it's because of math. it's either that or 2000
124 x 9 = the amount of girls which is 1116 then add the boys which is 124 so 1116 + 124 = 1250. After i did that i relized your question dont make sense
Answer:
0.09
Step-by-step explanation:
Given :
P(bike) = 0.8
P(car) = 0.2
P(Late given car) = P(Late | car) = 0.05
P(Late given bike) = p(Late | bike) = 0.1
Probability that professor is late :
P(late) = [P(Late | car) * p(car)] + [p(Late | bike) * p(bike)]
P(late) = [0.05 * 0.2] + [0.1 * 0.8]
P(late) = 0.01 + 0.08
P(late) = 0.09
