If 3p = 4q and 9p = 8q - 12, find the value of pq.
...If 3p = 4q and 9p = 8q - 12, find the value of pq.
12
7
-7
-12
Correct answer is A
9p = 8q - 12
9p = 2(4q) - 12
9p = 2(3q) - 12
9p = 6p - 12
3p = -12
p = -4
3×−44=4q4
q = 13
pq = -3 x -4
= 12
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