Question

If p is directly proportional to q and p = 37.5
when q = 2.5, determine (a) the constant of
proportionality and (b) the value of p when q
is 5.2

Answer 1

p is directly proportional to q, so p = kq
Where k is the constant of proportionality

Part a) p = 37.5, q = 2.5, plug in and solve for k

Part b) plug in the k value you calculated in part a), q = 5.2, solve for p