Sales tax is simply the tax added to the sales of an item or group of items.
The sales tax rate in Sacramento, California is 8.5%
From the receipt, we have:
Assume the sales tax is x.
The equation that calculated the total amount is:
[tex]Total = Subtotal \times (1 + x)[/tex]
So, we have:
[tex]10.85 = 10 \times (1 + x)[/tex]
Divide both sides by 10
[tex]1.085 =1 + x[/tex]
Subtract 1 from both sides
[tex]0.085 =x[/tex]
Rewrite the above equation as
[tex]x = 0.085[/tex]
Express as percentage
[tex]x = 8.5\%[/tex]
Hence, the sales tax rate is 8.5%
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