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Samuel paid $9.10, including tax, for a dog collar. Before tax, the original price of the collar was $8.75. What was the sales tax rate? Let r represent the rate as a decimal. Complete the equation that represents the problem. (Hint: The original price of the collar plus the amount of tax equals the total cost including tax.)

Respuesta :

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8.75 + 8.75r - = 9.10

Answer:

r=0.04

Step-by-step explanation:

The original Price of the Collar= $8.75

Amount Paid by Samuel =$9.10

Tax Paid = Amount Paid- Original Price

               =9.10-8.75=$0.35

Let x be the rate of tax.

[tex]\frac{x}{100} X 8.75=0.35\\8.75x=0.35 X 100\\x=35 \div 8.75=4[/tex]

The rate is 4%.

Therefore, rate of tax(r) in decimal = 0.04.

NOTE: Since the equation to be completed is not given, I have simply found the rate and hope you can pick it up from there.

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