We know that Inverse Variation is a<span> relationship between two variables in which the product is a constant so let x------> a pitch of a musical instrument y------> </span><span>the wavelength x*y=k
find the value of k
for x=</span><span>220 hertz y=3 ft </span><span>x*y=k 220*3=k k=660
</span>for x=165 hertz y=4 ft x*y=k 165*4=660 k=660<span>
the answer part a) is </span><span>the type of variation between pitch and wavelength is an inverse variation </span> part b) <span>What is the pitch when the wavelength is 5 feet? x=? y=5 ft k=660 x*y=k------> solve for x x=k/y----------> x=660/5-----> x=132 hertz
If Robert runs 3 miles in 45 minutes, by the end of 90minutes, Robert would have covered 6miles, while Jacob covered 5miles in 90 minutes, therefore, Robert ran faster than Jacob.
