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In 1927, Charles Lindbergh was the first person to fly nonstop across the Atlantic Ocean. Today, Commercial airliners fly from New York to Paris five times as fast, or 400 miles/hour faster than Lindbergh's plane.
a. at what speed did Charles Lindbergh''s plane fly?
b. at what speed do commercial airplanes fly today?

PLZ show work on both

Respuesta :

mathstudent55

Answer:

a. 100 mph

b. 500 mph

Step-by-step explanation:

a.

Let the speed of Lindbergh's plane be x.

Today's planes are 5 times faster, so their speed is 5x.

Today's planes speed is 400 mph faster than Lindbergh's speed.

x + 400 = 5x

5x = x + 400

4x = 400

x = 100

Lindbergh's speed was 100 mph

b. 5x = 5 * 100 = 500

Today's planes fly at 500 mph

bvil3985

Answer:

i was learning abt that

Step-by-step explanation:

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