Question

if the sales-tax rate is 6%, then how much sales tax is there on a $3.79 purchase? (Round the answer to the nearest cent.)

Answer 1

Answer: $0.23

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Work Shown:

6% = 6/100 = 0.06

6% of $3.79 = 0.06*3.79 = 0.2274 = $0.23

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Notes:

• 0.23 dollars = 23 cents
• The total bill, after tax is included, is 3.79+0.23 = 4.02 dollars.
• We can multiply by 1.06 as a shortcut: 1.06*3.79 = 4.0174 = 4.02 dollars; this is because 1.06 = 1 + 0.06 = 100% + 6%