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Svetllana [295]
2 years ago
7

Simone travels 90 miles at an average speed of 40 mph.

Mathematics
1 answer:
denis-greek [22]2 years ago
5 0

Using the relation between velocity, distance and time, it is found that her average speed for the final 30 miles is of 55.56 mph.

<h3>What is the relation between velocity, distance and time?</h3>

Velocity is distance divided by time, that is:

v = \frac{d}{t}

Simone travels 90 miles at an average speed of 40 mph, hence the time is given by:

t_1 = \frac{90}{40} = 2.25

She then travels a further 30 miles, with an average speed for the journey of 43 mph. Hence, she traveled 90 + 30 = 120 miles, and the total time is given by:

t = \frac{120}{43} = 2.79

Hence, in the second part, she traveled 30 miles in 2.79 - 2.25 = 0.54 hours, so the velocity is given by:

v = \frac{d}{t} = \frac{30}{0.54} = 55.56

Her average speed for the final 30 miles is of 55.56 mph.

More can be learned about the relation between velocity, distance and time at brainly.com/question/24316569

#SPJ1

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