becerraangel10 becerraangel10

23-03-2018
Mathematics

contestada

The total cost, including tax, of a $20 mouse for a personal computer is $21. What is the sales tax rate

Respuesta :

mathstudent55 mathstudent55

23-03-2018

Without tax it costs $20.
With tax it costs $21.
The amount of tax paid is $21 - $20 = $1

$1 tax was paid on $20.

$1/$20 * 100 = 0.05 * 100 = 5%

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