(a) answer : a,d,e
(b) answer : b)22L=5.8gal
(c) answer : b)25ft/min
1. Convert meters per second to kilometers per hour,
1 kilometer = 1000 meters
1 meter = [tex]\frac{1}{1000}[/tex]
1 hour = 60 minutes. it means [tex]\frac{60 minutes}{1 hour}[/tex]
1 minute = 60 seconds. it means [tex]\frac{60 seconds}{1 minute}[/tex]
so [tex]\frac{1}{1000}[/tex] , [tex]\frac{60 minutes}{1 hour}[/tex] and [tex]\frac{60 seconds}{1 minute}[/tex] are the conversion factors used.
(2): Convert 22 Liters to gallons
1gal=3.8L
1 litre = [tex]\frac{1}{3.8}[/tex] gallons
22 litre = [tex]22* \frac{1}{3.8}[/tex] gallons= 5.8 gallons
(3)Convert 5 inches per second to feet per minute.
We know 1 feet = 12 inches and 1 minute = 60 seconds
1 inches per second = [tex]\frac{1}{12} * \frac{60}{1}[/tex]= 5 feet per minute
5 inches per second = 5 * 5 = 25 feet per minute
