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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?
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Sep 3, 2018
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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
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Milad Nouri
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21,000-600 = 20,400
20,400/3400 = 6
t = 6
21,000=3,400(6)+600
21,000=20,400+600
21,000=21,000
34.00
*6
__
204.00
3,400*6=20,400
Shubham Azad
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Sep 8, 2018
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Shubham Azad
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