SOLUTION: The sales tax on a $300 purchase is $16.50. What would be the total cost of a purchase that is marked at $450?

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Question 822750: The sales tax on a $300 purchase is $16.50. What would be the total cost of a purchase that is marked at $450?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

The sales tax highlight_green%28x%29 on a $300 purchase is $16.50. 

x%2A300+=+16.50,  x  = 100%2816.50%2F300%29+

 = 5.5% sales tax

What would be the total cost of a purchase that is marked at $450?

 .055%2A450+ = $24.75

total cost of a purchase: $450 + $24.75 = $474.75