MathRevolution wrote:
[GMAT math practice question]
If \(8x=2^y\), what is the value of x, in terms of y?
A. \(x=2^{3y-2}\)
B. \(x=4y\)
C. \(x=4^{y-2}\)
D. \(x=2^{y-3}\)
E. \(x=2y\)
\(8x=2^y\) ==>\(2^3x=2^y\) ==>\(x=2^y/(2^3)\) ==>\(x=2^{y-3}\)
Ans - D
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