If j and k are inversely proportional and j = 42 when k = 56 , what is the value of j when k = 98?

If they're inversely proportional, then \(j*k=j*k\) even when j and k are different. In this case, \(42*56=j*98\).

We would have \(j= (48*56)/98\)

Solving this, we have \(j = 24\)

(correct me if i am incorrect)

INversely proportional

j = c/k or

jk = c c = constant

42(56) = 2352

when k = 98

j (98) = 2352

j = 2352/98 = 24 just as ahz001 found !