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1: 

 

2:

 

 Dec 15, 2017
 #1
avatar+7354 
+1

1:

 

log4(20x - 10) - 2log4(3)  =  log4(4x + 10)

 

log4(20x - 10) - log4(32)  =  log4(4x + 10)       by the Power Property of Logarithms

 

log4( \(\frac{20x-10}{9}\) )  =  log4(4x + 10)       by the Quotient Property of Logs. (They also changed  32  to  9)

 

\(\frac{20x-10}{9}\)   =   4x + 10      by the Equality Property of Logarithms

 Dec 15, 2017
 #2
avatar+99659 
+1

Here's  2

 

There were 65000 people in the stadium when the trend began

 

The number of people in the stadium decreased by 4% for each 10 minute period since the trend began

 

 

cool cool cool

 Dec 16, 2017

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