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Ricardo wants to rent a personal watercraft for a beach party. Wavy Dave's charges $17. 50 per hour plus a $20 fuel fee. Sun'N'Fun charges $15. 00 per hour plus a $30 fuel fee. After how many hours will Sun'N'Fun be cheaper than Wavy Dave's?.

Respuesta :

GopherGrl

Answer:

5 hours

Explanation:

(h = hour)

Wavy Dave's:

h1=20 + 17.50= 37.50

h2= 20 + 17.50 + 17.50 = 55

h3= 20 + 17.50 + 17.50 + 17.50 = 72.50

h4 = 20 + 17.50 + 17.50 + 17.50 + 17.50 = 90

h5= 20 + 17.50 + 17.50 + 17.50 + 17.50 + 17.50 = 107.50

Sun'N'Fun:

h1= 30 + 15 = 45

h2= 30 + 15 + 15 = 60

h3= 30 + 15 + 15 + 15 = 75

h4= 30 + 15 + 15 + 15 + 15 = 90

h5= 30 + 15 + 15 + 15 + 15 + 15 = 105

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