Viewing page 15 of 91

This transcription has been completed. Contact us with corrections.

MATHEMATICS FOR AIR CREW TRAINEES       7

Example: Check the answer to example g(2) above.
Solution: .624621034X10.367=6.64621034
6.64621034+remainder=6.64621034/0.00003966
                     _____________________
                       6.64625000                  Check.

j. Units.-As in multiplication, any two different quantities may be divided, even though the units are not the same. The quotient is expressed in a unit which is itself the quotient of the units of the dividend and the divisor.
(1) 175 miles by 10 hours
Solution: 175 miles/10 hours = 17.5 miles/hours       Answer.
(In units of this type it is customary to write the denominator in the singular and to use the stroke(/) to separate the numerator from the denominator: 17.5 miles/hour or 17.5 miles/hr. Although "miles/hour" really means miles divided by hours it is usual to substitute the word "per" for "divided". Hence "miles/hour" is read as miles per hour, the standard abbreviation for which is mph. 

(2)Example: Divide 500 pounds by 50 square inches.
Solution: 500 pounds/50 square inches = 10 pounds/square inch = 10lb/sq. in.
Answer.
(10 pounds per square inch)
k. Exercises.-Perform the indicated divisions and express the quotient as a mixed number  
(1)894/16
(2)755/24
Solution:                              Answer.
(3)1,025/314
(4)215/72
(5)4,723/353
(6)6,754,000/11,411
(7)9,001/30
(8)11,415/45
(9)673/37
(10)1,371/38

13