Homework Help: math

Posted by Anonymous on Monday, July 18, 2011 at 5:49pm.

Al's Rentals charges $25 per hour to rent a windsurfer and a wet suit. Wendy's charges $20 per hour plus $15 extra for a wet suit. Find the number of hours for which the total charges for bot would be the same. What is the cost?

math - Ms. Sue, Monday, July 18, 2011 at 5:56pm
You'll probably need to show your work in a different way.

1 hour >> 25 and 35
2 hours >> 50 and 55
3 hours >> 75 and 75
math - Reiny, Monday, July 18, 2011 at 6:11pm
Al's --- cost = 25t
Wendy --- cost = 20t + 15

when is 25t = 20t+15 ?
5t = 15
t = 3

when t=3
cost for both is $75

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