We know that the cyclist rode for 3.5 hours and completed a distance of 60.9 miles.
We can estimate the average speed as the quotient between the distance and the time:
[tex]\bar{v}=\frac{d}{t}=\frac{60.9\text{ miles}}{3.5\text{ hours}}[/tex]We have now to estimate the distance she will ride in one hour.
We can estimate the average speed as:
[tex]\frac{60.9}{3.5}\approx\frac{60\cdot2}{3.5\cdot2}=\frac{120}{7}\approx17[/tex]She will ride 17 miles in an hour.
If we solve the quotient 60.9 / 3.5 with a calculator, we get 17.4 miles per hour.
Answer:
a) We can estimate that she will ride 17 miles in an hour.
b) 17.4 miles per hour.
