Wednesday

July 23, 2014

July 23, 2014

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

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

- maths -
**Steve**, Saturday, October 12, 2013 at 11:09am#1. Since there is a fixed charge of $65, you know that there will be a "...+65" in the solution. That leaves only (A)

#2 Since the value starts at $5500, you know the solution will have "5500-..." in it. That leaves only (D)

See whether you can justify the rest of the solution.

- maths -
**Kelsi**, Saturday, October 12, 2013 at 11:13amA for the 1st one, 45 dollars per hour, x, is 45x. The fixed-service is a one-time thing so it's c = 45x + 65.The 2nd one is D. The original cost of the copier is 5,500. 5500-2500 = 3000. This is the cost reduction over the ten years. 3000/10 is 300: The amount it gets reduced by every year. For D, when you plug in 10, you get 2,500.

- maths -
**mdan**, Saturday, October 12, 2013 at 11:22amthanks much Steve and Kelsi

**Related Questions**

math - Brandon’s rentals charges $ 25 per hour to rent a Windsufer and a wet ...

math - Al's Rentals charges $25 per hour to rent a windsurfer and a wet suit. ...

algebra 2 - Two snow resorts offer private lessons to their customers. Big Time ...

algebra - Math Magicians charges $45 registration fee plus $30 per hour for ...

Math - Manny is a plumber and charges $50 when he visits a client and $30 per ...

Algebra 1 - A landscape company charges $100 plus $15 per hour. Another company ...

8TH GRADE MATH EXPRESSIONS - At a lake, there are 2 boat rental shops. Shop A ...

math - the first landscaper charges $16 per hour to landscape my house, plus $...

Math - The number of calls received by a car towing service averages 14.4 per ...

Algebra1 Math - A moving company charges $800 plus $16 per hour. Another moving ...