Pre-Calculus-check answers

A farm supply store carries 50-lb bags of both grain pellets and grain mash for pig feed. It can store 600 bags of pig feed. At least twice as many of its customers prefer the mash to the pellets. The store buys the pellets for $3.75 per bag and sells them for $6.00. It buys the mash for $2.50 per bag and sells it for $4.00. If the store orders no more that $1400 worth of pig feed, how many bags of mash should the store order to make the most profit?

Answer: 400 bags

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