Answer:
The number of hours DeShawn drove before Shaun caught up = 5 hours
Step-by-step explanation:
Average speed of DeShawn = 30 mph
Average speed of Shawn = 50 mph
After driving for three hours Shaun caught up with DeShawn.
Distance traveled by Shaun in 3 hours,
Distance = Time x Average speed = 50 x 3 = 150 miles.
So DeShawn also travels 150 miles, we need to find time DeShawn taken to travel this 150 miles,
Distance = Time x Average speed
150 = Time x 30
Time = 5 hours.
The number of hours DeShawn drove before Shaun caught up = 5 hours
There are 8 different ways
Factor: 24y-40
Answer: 8(3y-5)
Simplifying: 24y-40
Answer: There are no like terms.
Answer:
The 99% confidence interval for the population mean is 22.96 to 26.64
Step-by-step explanation:
Consider the provided information,
A sample of 49 customers. Assume a population standard deviation of $5. If the sample mean is $24.80,
The confidence interval if 99%.
Thus, 1-α=0.99
α=0.01
Now we need to determine 
Now by using z score table we find that 
The boundaries of the confidence interval are:
Hence, the 99% confidence interval for the population mean is 22.96 to 26.64
