x = 0.7?
If this is not the correct answer, you'll have to provide a better problem statement.
That is the equation I drew up. I need to know what X needs to be so that Y is as high of a number as possible.Code:( 80(1-x) + 107 )( 5x + 5 ) = y
If X = 0.66 then Y = 1113.86
If X = 0.67 then Y = 1113.89
If X = 0.68 then Y = 1113.84
So I know the answer is somewhere between 0.66 and 0.67
Okay, so let me ask you the following... Your problem boils down to finding the maximum of . This is a parabola that opens downward, so it has a maximum. The maximum will lie on the axis of symmetry of the parabola and is, in fact, at the vertex. Can you find the vertex of this parabola?
-Dan