Multiply and simplify: 10x(6x2 + 7x + 9) 60x3 + 160x 60x3 + 70x2 + 90x 60x2 + 70x + 90 6x2 + 17x + 9
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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:
Simone travels 90 miles at an average speed of 40 mph, hence the time is given by:
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:
Hence, in the second part, she traveled 30 miles in 2.79 - 2.25 = 0.54 hours, so the velocity is given by:
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
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