James went on holiday to America.
The summary table below shows all his expenses during this trip.
Cost in $
Cost in £
Flights
£1,400
Hotel (14 nights)
Wifi (13 days) |
$105 per night
$4 per day
$105 * 14 = £1470
The exchange rate at the time of James' holiday
was $1.45 to £1
Work out, in £, the total cost of his holiday.

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Asurvey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand x aspirin.how many doctors use brand x aspirin

How can constraints be used to model a real-world situation?