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August 1, 2015

Homework Help: maths

Posted by mdan on Saturday, October 12, 2013 at 11:05am.

The Number Two Plumbing Co. charges $45 per hour plus a fixed service call charge of $65. Write an equation that will allow you to compute the total bill for any number of hours, x, that it takes to complete a job.
A. C = 45x + 65
B. C = 65x + 45
C. 65x + 45C = 0
D. 45x + 65C = 0


A business purchases a copier for $5,500 and anticipates it will be worth $2,500 after 10 years. Use straight-line depreciation to find a linear model for the depreciated value V of the copy machine after t years of use.
A. V = -5,500 + 300t
B. V = 300 - 5500t
C. V = -300 + 5500t
D. V = 5,500 - 300t

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