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Mandy competed in a race that included running and biking.Mandy ran 1 3/4 and bicycled 3.6 miles. Mandy total time was 0.7 hour what was Mandy approximate average speed on miles per hour. A. 3.75 miles per hour. B. 6.87 miles per hour. C. 7.06 miles per hour. D. 7.64 miles per hour

Respuesta :

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Answer:

1 3/4 = 7/4 = 1.75 miles (ran);

1.75 + 3.60 = 5.35 miles ( ran and bicycled);

average speed = 5.35 / 0.7 = 7.64 miles per hour;

The correct answer is D.

Step-by-step explanation:


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