Answer:
2/3 of an hour
Step-by-step explanation:
Here is the information that the question gives us.
A plane covers a distance in 5/3 of an hour at 340 km per hour. How long would it take for a plane to cover the same distance while traveling at 850 km per hour?
Remember, distance = speed * time. Using that formula, we can find the distance with this equation:
distance = 340 * 5/3
Multiply.
distance = 1700/3 km
Then, we can plug this distance in to find the time it would take for a plane going at 850 km/hour.
distance = speed * time
1700/3 = 850 * time
Divide both sides by 850
(1700/850) / 3 = time
time = 2/3 hour
Thus, the answer is 2/3 of an hour.
Just in case, let's check the answer. Because both the planes travel the same distance, then their speeds * time should both equal "distance". In other words, they should be equal.
340 * 5/3 = 2/3 * 850
Simplify.
1700/3 = 1700/3
So, the answer is correct.
I hope this helps! Feel free to ask any questions!
