There are 1760 yards in a mile. A certain wheel makes 17,600 revolutions in 40 miles. What is the number of yards in the radius of the wheel? Give your answer as a decimal to the nearest tenth of a mile.
the wheel travels a distance of $\displaystyle \frac{40 \cdot 1760}{17600} = 4 \, yds$ in one revolution, so that would mean the wheel's circumference is 4 yds, correct?