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The average cost of tuition and fees at public four year colleges in the United States can be modeled by the formula

𝑇=165𝑥+2771,T=165x+2771,

where T represents the average cost of tuition and fees for the school year ending x years after 1996. Use the formula to determine the year when tuition and fees at public U.S. colleges average $4421.
(Note: Give the year. For example, if you calculate that the answer is 9 years after 1996, then enter 2005 .)

 Mar 16, 2021
 #1
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4421  = 165x  + 2771

 

4421  -  2771   =  165x

 

1650 = 165x

 

x =1650  /  165

 

x  =10   years  after 1996 =  2006

 

cool cool cool

 Mar 16, 2021

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