Carcass wrote:
If \(p - \frac{p}{q} = 4\) what is p in terms of q?
A. \(p = \frac{4q}{(q-1)}\)
B. \(p = \frac{4q}{(q+1)}\)
C. \(p = 4q(q-2)\)
D. \(p = \frac{4(q+1)}{q}\)
E. \(p = \frac{4(q-1)}{q}\)
Take: \(p - \frac{p}{q} = 4\)
Multiply both sides by \(q\) to get: \(pq - p = 4q\)
Factor out \(p\) on the left side to get: \(p(q - 1) = 4q\)
Divide both sides by \((q - 1)\) to get: \(p = \frac{4q}{q - 1} \)
Answer: A
Cheers,
Brent
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Brent Hanneson - founder of Greenlight Test Prep