Question 167301
1 ft=(1/5280)mi
44 ft=(44/5280)mi
1 sec=(1/60)*(1/60)=(1/3600)hr
(1 sec=1/60 min and 1 min=1/60 hr, so 1 sec=1/3600 hr)
Now lets put it togethr
44 ft/sec=(44/5280)mi/(1/3600)hr
(44/5280)/(1/3600)=(multiply numerator and denominator by (3600/1) to get rid of the complex fraction:
(44/5280)*(3600/1)/(1/3600)*(3600/1) mi/hr=
(44*3600)/5280 mi/hr=
158400/5280 mi/hr= 30 mi/hr

CK my Math----I didn't come up with 38 mi/hr but hopefully you see the approach.
P.S.  I think that 30 mi/hr is correct.

Hope this helps---ptaylor