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A racehorse completes the Kentucky Derby, a distance of 1.25 miles, in
exactly 2.00 minutes. How fast is the horse in kilometers per hour?
A. 0.00647 kilometers per hour
B. 23.3 kilometers per hour
C. 0.0168 kilometers per hour
D. 60.3 kilometers per hour

Respuesta :

sebassandin

Answer:

D. 60.3 kilometers per hour

Explanation:

Hello,

In this case, we first compute the miles in kilometres:

[tex]1.25miles*\frac{1.60934km}{1mile} =2.012km[/tex]

Then the minutes in hours:

[tex]2.00min*\frac{1h}{60min}=0.033h[/tex]

Finally, the velocity:

[tex]v=\frac{2.012km}{0.033h}\\ \\v=60.3km/h[/tex]

Thus, answer is D. 60.3 kilometers per hour

Best regards.

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