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The sales tax in your city is
4.4%, and an item costs
$3 before tax.
How much tax would you pay on that item?
Round to the nearest hundredth or cent.

The sales tax in your city is $4.4 \%$ , and an item costs $\$ 3$ before tax. $\newline$ How much tax would you pay on that item? $\newline$ Round to the nearest hundredth or cent.

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Exponential growth and decay: word problems

Full solution

Q. The sales tax in your city is

4.4 \%

, and an item costs

\$ 3

before tax.

\newline

How much tax would you pay on that item?

\newline

Round to the nearest hundredth or cent.

Convert to decimal: Convert the sales tax rate from a percentage to a decimal to facilitate the calculation. $\newline$ To convert a percentage to a decimal, divide by $100$ . $\newline$ $4.4\% = \frac{4.4}{100} = 0.044$
Calculate sales tax: Calculate the amount of sales tax by multiplying the cost of the item by the sales tax rate in decimal form. $\newline$ Sales tax = Item cost $\times$ Sales tax rate $\newline$ Sales tax = $\$3 \times 0.044$
Perform multiplication: Perform the multiplication to find the sales tax. $\newline$ Sales tax = $\$3 \times 0.044 = \$0.132$
Round to nearest hundredth: Round the sales tax to the nearest hundredth, as tax is typically rounded to the nearest cent. $\newline$ Rounded sales tax = $\$0.13$ (since $\$0.132$ rounded to the nearest hundredth is $\$0.13$ )

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