Problema Solution
A textbook costs $108.00. If Matthew paid a total of $113.94 for the book and sales tax, what rate of sales tax was he charged?
Answer provided by our tutors
Let 'r' represent the rate of the sales tax as a decimal.
108.00 + r*108.00 = 113.94
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click here to see the equation solved for r
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r = 0.055 or 5.5 %
Matthew paid 5.5% sales tax.