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Vsevolod [243]
2 years ago
10

A cargo plane flew from the US across the Atlantic at 280 mph, and flew back to the US at 300

Mathematics
1 answer:
notsponge [240]2 years ago
5 0

Answer:

Step-by-step explanation:

300t=280(t+2)

300t=280t+560

20t=560

t=28

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