Answer:
21
Step-by-step explanation:
Can I have brainliest:)
Answer:
6 minutes
Step-by-step explanation:
Connor drives from the village to Belfast at an average speed of 40mph.
The distance covered is 20 miles.
Time = distance/ speed
Time = 20/40
Time = 0.5 hours
Time = 30 minutes.
Kelly drives from the village to Belfast at an average speed of 50mph.
Time = distance/speed
Time = 20/50
Time = 0.4 hours
Time = 24 minutes
It will take Conor 30 - 24 = 6 minutes longer than Kelly
Answer:
I believe that the answer is C.
Step-by-step explanation:
Answer:
Step-by-step explanation:
The average length of each car is
0.003 mile. The length of each car includes the bumper. The cars are in one lane. This means all the cars can be assumed to form a long line of cars that is uniform in length. This length is divided into equal lengths if cars.
The length of the traffic jam which is also the length of the line of is 7/8 = 0.875 mile long.
The number of cars would be in the that would be in the traffic jam will be length of the traffic jam/ length of each car. It becomes
0.875/0.003 = 292 cars
In Binomial distribution, the expected value or mean is given by,
E(X) = np
where, p = probability of success and n=number of sample size.
E(X) = 100×0.4 = 40
