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A hotel has 150 rooms. The charges for a double room and a single room are $270 per night
and $150 per night respectively. On a night when the hotel was completely occupied,
revenues were $33,300. Which pair of equations can be used to determine the number
of double room, d, and the number of single room, s, in the hotel?
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First equation is
d + s = 150 rooms,
counting for the rooms.
Second equation is
270*d + 150*s = 33300 dollars,
counting for the total revenue.
Solved, with explanations.
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In short form, write equations as you read the problem.
When you read the problem, think how to write equations.
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