The second constraint is the same as the objective function, so your problem boils down to finding integer solutions to
.. 3x1 +5x2 = 36
There are 3 solutions. They are (x1, x2) = (12, 0), (7, 3), (2, 6)
The value of the objective function there is (obviously) 36.
http://www.purplemath.com/modules/specfact.htm
7, 14 would be it but you have to divide the whole equation by 2 to get the y alone
The ratio of the pink to white marbles is 20%
Answer:
120 feet of fence is enough for a circle 38 feet in diameter
