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What expression represents an airplane that was 42,000 feet in the sky and ascended out of rate of 3000 feet per minute what is the altitude of the plane after nine minutes

Respuesta :

ap8678289

Answer:

42000-3000x

Step-by-step explanation:

It's this expression because if x were to  be the number of minutes it's been ascending, then it would be 3000(9), which is 27000. Subtract that number from 42000 and you get the altitude of the airplaine, which is 15000 after 9 minutes.

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