Material A costs 3 per kilogram, and material B costs $5 per kilogram. If 10 kilograms of material K consists of x kilograms of material A and y kilograms of material B, is x > y?
(2) The cost of the 10 kilograms of material K is less than $40
I get that I need to set up 10K = 3x + 5y < 40
The answer is B, but I can't figure out how. Thanks!
-2x<10> x>5 so x is greater than y. suff.
I slipped up on this one too, u really should check ur work on DS probs, b/c of stupid things like this.