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Zorluk: KolayTaxes and Tips

A customer pays for a car detailing service that costs $120.00\$120.00 before tax. If the local sales tax rate is 7%7\%, what is the total cost of the service including tax?

  1. $128.40\$128.40Cevap
  2. B
    $127.00\$127.00
  3. C
    $8.40\$8.40
  4. D
    $204.00\$204.00

Cevap

The total cost of the service is $128.40\$128.40.
To find the total cost, first calculate the sales tax by converting 7%7\% to a decimal (0.070.07) and multiplying it by the original price of $120.00\$120.00, which equals $8.40\$8.40. Then, add this tax amount to the original price ($120.00+$8.40=$128.40\$120.00 + \$8.40 = \$128.40) to get the final total.

Adım Adım Çözüm

1
Convert the sales tax percentage to a decimal.
7%=0.077\% = 0.07
Percentages must be expressed as decimals to perform mathematical operations.
2
Calculate the amount of sales tax.
$120.00×0.07=$8.40\$120.00 \times 0.07 = \$8.40
Multiplying the base price by the tax rate gives the total tax amount.
3
Add the tax amount to the original price to find the total cost.
$120.00+$8.40=$128.40\$120.00 + \$8.40 = \$128.40
The total cost includes the base price plus the applied tax.

Anahtar Kavram

Calculating sales tax and total cost
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Konular

Taxes and Tips

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