Question 532546
I think you mean, "constraints"
:
It says there is a gold ore manufacturing company. there are 2 sections that make the ore.
 Section A costs $20 per ton of ore Section B costs $10.
 They cannot spend more than $80 and section B cannot make more than section A. How much ore can they make to maximize costs?
:
Cost constraint
20A + 10B =< 80
:
"section B cannot make more than section A"
B =< A
Therefore we can say B = A and use the 1st equation
20A + 10A =< 80
30A = < 80
A =< {{{80/30}}}
A =< 2.67, 
We have to use integers. A = 3, then B = 2
20(3) + 10(2) = 80