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A pilot planning to fly at 420 miles per hour flies against a wind which cuts the speed to 4/5 of the planned speed. How long will it take the plane to travel 840 miles?

A pilot planning to fly at 420 miles per hour flies against a wind which cuts the speed to 4/5 of the planned speed. How long will it take the plane to travel 840 miles?
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A pilot planning to fly at 420 miles per hour flies against a wind which cuts the speed to 4/5 of the planned speed. How long

will it take the plane to travel 840 miles?

asked
User Mark Van Proctor
by
8.9k points

2 Answers

5 votes

Answer

2.5 hours

Explanation:

4/5 of 420 is 336 mph

840 ÷ 336 = 2.5 hours

answered
User Renke Grunwald
by
7.8k points
2 votes

Answer:

2.5 hours

Explanation:

420x4/5=336

840/336=2.5

answered
User Robkriegerflow
by
8.7k points
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