Aman once had to go by bicycle twelve miles to the railroad station to catch a train. he
thought: 'i have an hour and a half to catch the train. four miles is uphill, four miles are
downhill, and four miles is level road. i can go uphill at 4 miles per hour, downhill at 12
miles per hour, and i can go 8 miles per hour on level road. this is an average of 8 miles per
hour, so i'll get there in time.' was his reasoning correct? why or why not?

Ineed in figuring out this problem.

Suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet.

Using pert, adam munson was able to determine that the expected project completion time for the construction of a pleasure yacht is 21 months, and the project variance is 4. a) what is the probability that the project will be completed in 17 months? b) what is the probability that the project will be completed in 20 months? c) what is the probability that the project will be completed in 23 months? d) what is the probability that the project will be completed in 25 months? e) what is the due date that yields a 95% chance of completion?