Linear programming. (J. Watson) Purcell Ltd. manufactures two models of regulators, the X900 and the P330. The assembly process for each is similar in that both require a certain amount of wiring and soldering. The X900 requires 3 hours of wiring and 2 hours of solder- ing, and the P330 requires 2 hours of wiring and 1 hour of soldering. During the next production period, 360 hours of wiring time are available and up to 210 hours of soldering time may be used. The X900 sells for $352 with costs of $322. The P330 sells for $248 with costs of $230. REQUIRED Formulate and solve this linear programming production mix situation and find the best combination of X900 and P330 that yields the highest profit.

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