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ivann1987 [24]
3 years ago
15

After one hour in flight, an airplane is located 100 miles north and 200 miles west of the airport. What is the velocity of the

plane? Round your answer to the nearest mile per hour.
100 miles per hour


200 miles per hour


210 miles per hour


224 miles per hour
Mathematics
1 answer:
MAVERICK [17]3 years ago
3 0
I think 224 miles an hour
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Answer:

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Let us use substitution method here. First of all we will solve for y from first equation and plug that into second equation.

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Therefore, amount invested at 7% is $16000 and amount invested at 9% is 28000-16000=$12000.

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