I think I'm starting to get a firm grasp on all the integer rules, but I'm still getting caught up in some problems I feel are quite simple....the help on this one is appreciated!
If (2^x) - (2^x-2) = 3(2^13), what is x?
A) 8 B) 15 C) 21 D) 25 E) 33
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SmartAssJun
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(2^x) - (2^x-2)= (2^x)*(1-1/4)= 3/4(2^x)=3(2^13)DFritschy wrote:I think I'm starting to get a firm grasp on all the integer rules, but I'm still getting caught up in some problems I feel are quite simple....the help on this one is appreciated!
If (2^x) - (2^x-2) = 3(2^13), what is x?
A) 8 B) 15 C) 21 D) 25 E) 33
1/4(2^x)= (2^x-2)= (2^13) => x-2=13 ===> x=15
So B
