Respuesta :
Answer:p=72
Step-by-step explanation:
P=k/q^2
When p=8 and q=9
8=k/9^2
8=k/81
Cross multiply
k=81×8
k=648
To determine p when q=3
P=648/9
P=72
Answer:
p = 72
Step-by-step explanation:
Given: p ∝ 1 / q^2
p = k / q^2 (w here k is a constant)
p x q^2 = k
When p = 8 and q = 9,
8 x (9)^2 = k
8 x 81 = k
k = 648
When q = 3,
p x (3)^2 = 648
p = 648 / 9
Therefore, p = 72
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