Answer:
107.5 ft
3.75 miles
2x + 19
Step-by-step explanation:
Elevator:
Start: 85.5 ft
Travel up: 2.75 ft/s for 8 s.
Distance of travel:
distance = speed * time = 2.75 ft/s * 8 s = 22 ft
Final elevation: 85.5 ft + 22 ft = 107.5 ft
Answer: 107.5 ft
Train:
Speed: 22.5 mph
Travel time: 2.5 hours
travel distance = speed * time = 22.5 miles/hour * 2.5 hours = 56.25 miles
Original distance to destination: 60 miles
Distance to destination after traveling 56.25 miles: 60 miles - 56.25 miles = 3.75 miles
Answer: 3.75 miles
Manufacturing plants:
The difference is the difference in the expressions.
5x + 14 - (3x - 5) = 5x + 14 - 3x + 5 = 2x + 19
Answer: 2x + 19
