Check my answer?
If p varies directly with q, and p = 10 when q = 2, what is the value of p when q = 20
A.
p = 40
B.
p = 28
C.
p = 1
D.
p = 100
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I believe D.
Yes, you are correct. Suppose the relationship is p=aq. Put p=10 and q=2 in, we can get p=5q. So when q=20, p=20*5=100. So the answer is D. Be confident with yourself~
