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If 5^21 x 4^11 = 2 x 10^n, what is the value of n?

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Lena
 
 

If 5^21 x 4^11 = 2 x 10^n, what is the value of n?

by Lena Fri Nov 28, 2008 3:10 pm

Anwer choices:

a) 11
b) 21
c) 22
d) 23
e) 32

I would be very happy if somebody could help me with this problem!
RonPurewal
Students
 
Posts: 19744
Joined: Tue Aug 14, 2007 8:23 am
 

by RonPurewal Sat Nov 29, 2008 7:44 am

http://www.manhattangmat.com/forums/5-2 ... t2682.html

http://www.manhattangmat.com/forums/5-2 ... -t378.html
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