calculus
posted by aj .
the telephone company is planning to introduce two new types of executive communications systems that it hopes to sell to its largest commercial customers. It is estimated that if the first type of system is priced at x hundred dollars per system and the second type at y hundred dollars per system, approximately 63x+2y consumers will buy the first type and 70+3x5y will buy the second type. If the cost of manufacturing the first type is $2000 per system and the cost of manufacturing the second type is $2000 per system, what prices x and y will maximize the telephone company's profit?
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