Quick math question help :D

<p>p=ks</p>

<p>s=nt</p>

<p>Two relationship involving the variables p,s, and t are given above. Which of the following must be true?</p>

<p>A) P is directly proportional to T
B) p is directly proportional to t^2
C) P is equal to T.
D) P is directly proportional to 1/T
E? P is directly proportional to 1/T^2 (T^-2)</p>

<p>Thanks</p>

<p>p = ks = k(nt).</p>

<p>Going through the answer choices, A is true (because if t increases, p increases linearly, assuming k and n are held constant).</p>

<p>p=knt, so when p is increased, t increased as the “kn” times of the p’s rate…so the answer is A</p>