Chris B.

asked • 01/25/17

The coast of a movie ticket

The cost of a movie ticket,c, with an 8% sales tax can be represented by the expression c+0.08c. Simplify the expression. Determine the total coast of the ticket after sales tax if the original price of the ticket is $9.
 

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David W. answered • 01/25/17

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Chris, remember that c = 1c. We just don't write it that way. It would be like calling me 1 David when I'm just David.
 
1c + .08c = 1.08c
 
1.08(9) = 9.72
 
$9.72
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Chris B.

Thank u for showing me how to do it because my teacher is doing it differen, and I understand how u did it thank you so much
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01/25/17

David W.

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I suppose you could also factor out the c, again remembering that c = 1c.
 
c + .08c = c(1 + .08) = c(1.08)
 
9(1.08) = 9.72
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01/25/17

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