Concept explainers
Planning a Vacation. Most cruise ships offer a choice of rooms at varying prices, as well as additional packages and shore excursions at each port. The following table lists room prices for a seven-day Mediterranean cruise, as well as prices for several additional packages and excursions.
Conference Expenses. The cost to attend a three-day teachers’ conference is $245, and a hotel room costs $169 a night. One year, 489 teachers attended the conference, and 315 rooms were rented for two nights each.
a. Estimate the total amount spent by the teachers by rounding the cost of attending the conference, the cost of a hotel room, the number of teachers, and the number of rooms to the nearest ten.
b. Estimate the total amount spent by the teachers by rounding the cost of attending the conference, the cost of a hotel room, the number of teachers, and the number of rooms to the nearest hundred.
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Developmental Mathematics (9th Edition)
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