Please help understanding the following q!!
(1/5)^m *(1/4)^18 =1/2(10)^35.
What is the value of m?
a17
b24
c35
d45
*50
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Please help understanding the following q!!
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gettin there
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(1/5)^m * (1/4)^18 = 1/2(10)^35
(1/5)^m * (1/2)^(2*18) = 1/2(10)^35
(1/5)^m * (1/2)^36 = 1/2(10)^35
1/2 [(1/5)^m * (1/2)^35] = 1/2(10)^35
(1/5)^m * (1/2)^35 = 1/(10^35)
(1/5)^m * (1/2)^35 = 1/2( (2^35) * (5^35))
(1/5)^m = 1/(5^35)
m = 35
(1/5)^m * (1/2)^(2*18) = 1/2(10)^35
(1/5)^m * (1/2)^36 = 1/2(10)^35
1/2 [(1/5)^m * (1/2)^35] = 1/2(10)^35
(1/5)^m * (1/2)^35 = 1/(10^35)
(1/5)^m * (1/2)^35 = 1/2( (2^35) * (5^35))
(1/5)^m = 1/(5^35)
m = 35
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gettin there
- Junior | Next Rank: 30 Posts
- Posts: 10
- Joined: Thu Sep 25, 2008 9:15 am
- Location: new york
- GMAT Score:600
why did the line 5:stop@800 wrote:(1/5)^m * (1/4)^18 = 1/2(10)^35
(1/5)^m * (1/2)^(2*18) = 1/2(10)^35
(1/5)^m * (1/2)^36 = 1/2(10)^35
1/2 [(1/5)^m * (1/2)^35] = 1/2(10)^35
(1/5)^m * (1/2)^35 = 1/(10^35)
(1/5)^m * (1/2)^35 = 1/2( (2^35) * (5^35))
(1/5)^m = 1/(5^35)
m = 35
(1/5)^m * (1/2)^35 = 1/(10^35)
had "1/" left on the right side, when the 1/2 was eliminated completely from the left side? if you divided one side of the equation by 1/2 you should devide the other side by 1/2 as well, right?
am i missing something here? please help, thanks!
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