Question 4765
H varies inversely as t is written H {{{alpha}}} 1/t. We convert this to an equation by putting in a constant - call it k, so:


{{{H = k/t}}}. We now need to fix this value of k ie find its value. So we need to be given H and t...which we are in the question, amazing coincidence :-)


12 = k/3
--> k = 12*3
k = 36


So the equation is H = 36/t


jon