Hello today
well, I having some trouble with this math question
this is:
Achemical reactions products are denoted by:
dx/dt = k(a-x)(b-x)

where
x(t)=grams of substance C
a=8 b=6
at t=0 there were no grams of substance C
and at t=10 there were 2 grams

question is:
how many grams are there after 15minutes?

Please /sci/ I need to finish this fast