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Note that R is a proper fraction while S is an improper fraction bw 1 and 2. "Less than 1" means a proper fraction. So which of the following is a proper fraction? Test some upper and lower limit numbers -- its obvious that a small R and a small S should give you something less than 1 (e.g...
- by manochsa
Tue Nov 17, 2009 10:35 am- Forum: Problem Solving
- Topic: Number Properties
- Replies: 5
- Views: 1442
Exponents
Could someone please identify the fastest approach to solving the following:
(0.8)^-5/(0.4)^-4
A. 3/32
B. 5/64
C. 1/2
D. 1
E. 2
Thanks!
- by manochsa
Mon Nov 16, 2009 8:34 pm- Forum: Problem Solving
- Topic: Exponents
- Replies: 1
- Views: 1305