Friday, October 31, 2014

297: Systems of a Sort 3

A hotel rents a double-occupancy room for $30 more than a single-occupancy room. One night, the hotel took in $3115 after renting 15 double-occupancy rooms and 26 single-occupancy rooms. 
Other than by calling the hotel and asking directly, what ways could we use to find the single- and double- occupancy costs?

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