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vladmire: Master | Next Rank: 500 Posts; Posts: 132; Joined: Tue Oct 07, 2008 4:59 pm; Thanked: 4 times

by vladmire » Sun Jan 18, 2009 7:25 pm

The weekly production cost C of manufacturing x watches is given by the formula C = 4000+2x, where the variable C is in dollars.

a)what is the cost of producing 1000 watches
b)what is the cost of producing 2000 watches

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Source: Beat The GMAT — Problem Solving | Sun Jan 18, 2009 7:25 pm

piyush_nitt: Master | Next Rank: 500 Posts; Posts: 424; Joined: Sun Dec 07, 2008 5:15 pm; Location: Sydney; Thanked: 12 times

Re: Help

by piyush_nitt » Sun Jan 18, 2009 10:36 pm

vladmire wrote:The weekly production cost C of manufacturing x watches is given by the formula C = 4000+2x, where the variable C is in dollars.

a)what is the cost of producing 1000 watches
b)what is the cost of producing 2000 watches

A. 4000+2*1000

6000

B.

4000 + 2*2000

8000

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