The altitude a (in feet) of a plane t minutes after liftoff is given by a = 3400t + 600. How many minutes after liftoff is the plane at an altitude of 21,000 feet

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asked Feb 1, 2022 150k views

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The altitude a (in feet) of a plane t minutes after liftoff is given by a = 3400t + 600. How many minutes after liftoff is the plane at an altitude of 21,000 feet

Mathematics
high-school

Shawn Mclean asked

by Shawn Mclean

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Answer:

Explanation:

Altitude = 3400t +600

21,000 = 3400t +600

21000-600= 3400t

20400/3400 = 3400t/3400

t= 6

Answered by Gauthmath

Szymon Cofalik answered Feb 6, 2022

by Szymon Cofalik

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