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Dmitry_Shevchenko [17]
3 years ago
8

Help please??????????

Mathematics
1 answer:
Ostrovityanka [42]3 years ago
7 0

Step-by-step explanation:

Since <em>a</em> is the final altitude after <em>t</em> minutes, we can plug in 21,000 for <em>a</em> in the given equation.

21,000 = 3400t + 600

Solve for t.

20,400 = 3400t

t = 6 minutes

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