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Kyle's birthday party in 2007 cost d dollars per person and p people attended. In 2008, the cost per person doubled and the number of people attending the party also doubled. What is the ratio of the total cost of the party in 2007 to the total cost of the party in 2008? Express your answer as a common fraction.

 Apr 29, 2019
 #1
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2007d = 1/2 2008 d

2007p = 1/2 2008 p

 

simple, 1/2

 Apr 29, 2019
 #2
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Total cost of party in 2007  = p*d

Total cost of party in 2008  = (2p) (2d)  = 4 pd

 

So....2007 cost   / 2008 cost  =  pd  / 4pd  =  1/4

 

 

 

cool cool cool

 Apr 29, 2019

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