Dawn starts on a 132-mile trip on her moped at 30 miles per hour. After a while the motor stops, and she pedals the remainder of the trip at 12 miles per hour. The entire trip takes 6 1/2 hours. How far had Dawn traveled when the motor on the moped quit running?

Question

anonymous · Answer

90 miles for 3 hours on the motor
42 miles for 3.5 hours when pedaling

anonymous · Answer

thank you! do you understand this one?
Two cars start from the same place traveling in opposite directions. One car travels 3 miles per hour faster than the other car. Find their speeds if after 5 hours they are 515 miles apart

anonymous · Answer

you have to find the mph (smaller value)
mph (larger value)

anonymous · Answer

50mph x 5hours = 250 miles
53mph x 5 hours = 265 miles
250 miles + 265 miles = 515 miles in 5 hours