Question 1101377: A manufacturing company's processes result in at least 6 tons of metal and plastic waste each month. To make recycling the waste profitable, the manufacturing company only recycles the waste if they are paid at least $500. One month, the company sells the metal waste to a recycling company for $120 per ton and the plastic waste for $180 per ton. Let x represent the weight, in tons, of the metal waste, and let y represent the weight, in tons, of the plastic waste. Which system of inequalities represents this situation?
A. x+y≥6, 120x+180y<500
B. x+y>6, 180x+120y≥500
C. x+y≥6, 300(x+y)>500
D. x+y≥6, 120x+180y≥500
Answer by richwmiller(17219)   (Show Source):
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