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24 votes
I need help question

User Jkcl
by
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1 Answer

16 votes
16 votes

Exponential Equations

Solve for x:


13=25(1.2)^x

Dividing by 25:


(13)/(25)=1.2^x

Applying logs on both sides of the equation:


log(13)/(25)=log1.2^x

Applying the power property of logarithms:


log(13)/(25)=xlog1.2

Dividing by log 1.2:


x=(log(13)/(25))/(log1.2)

Calculating:

x = -3.587

User Pedro Fracassi
by
2.8k points
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