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Aleks04 [339]
3 years ago
7

(10 points): My sister Courtney is an assistant professor at a major university and a licensed psychologist. She

Mathematics
1 answer:
grin007 [14]3 years ago
6 0

Answer:

Courtney and her family traveled 14 miles in Mr. De Palma's cab from the airport to the hotel.  

Step-by-step explanation:

The total amount of the ride, including tip, was $42.00.  Since this amount represents exactly eight times the amount that was received as a tip, 42/8 is $5.25, which is the cost of the tip.  The other flat rates associated with the trip is the $3.15 for entry and $1.75 for each additional passenger (1.75 x 3=5.25).  Once you subtract these fees from the total amount, $42 - $5.25 (tip) - $5.25 (additional passengers) - $3.15 (entry) = $28.35.  Since Mr. De Palma charges $0.45 for every two-ninths of a mile, you take the revised total 28.35/.45 = 63.  Since 63 represents the amount for every two-ninths of a mile, you need to multiply this amount by 2/9 to get your total amount of miles, or 63 x 2/9 = 14.  

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