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AlladinOne [14]
3 years ago
6

A small airplane flies 1015 miles with an average speed of 290 miles per hour. 1.75 hours after the plane leaves, a Boeing 747 l

eaves from the same point. Both planes arrive at the same time; what was the average speed of the 747
Mathematics
1 answer:
expeople1 [14]3 years ago
3 0

Answer:

The average speed of the 747 was of 580 miles per hour.

Step-by-step explanation:

We use the following relation to solve this question:

v = \frac{d}{t}

In which v is the velocity, d is the distance and t is the time.

A small airplane flies 1015 miles with an average speed of 290 miles per hour.

We have to find the time:

v = \frac{d}{t}

290 = \frac{1015}{t}

290t = 1015

t = \frac{1015}{290}

t = 3.5

1.75 hours after the plane leaves, a Boeing 747 leaves from the same point. Both planes arrive at the same time;

The time of the Boeing 747 is:

t = 3.5 - 1.75 = 1.75

Distance of d = 1015, the velocity is:

v = \frac{d}{t} = \frac{1015}{1.75} = 580

The average speed of the 747 was of 580 miles per hour.

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