Jenny bought scrapbook supplies for $70.75. She paid $5.66 in sales tax. What was the sales tax rate on the supplies? If necessary, round your answer to the nearest tenth.

Answer 1

70.75(1-1/(1+r)) = 5.66
r = 0.0869 = 8.69%

Answer 2

I'm in 6th grade and I have to show my work. However, Steve, I don't understand the work you gave me. Is there any other way you can tell me?

Answer 3

consider the sales tax. If it is 5%, the the final price is the retail price times 1.05, right?

So, if our tax rate is r (expressed as a decimal), then the final cost of 70.75 is (1+r) times the sticker price.

The tax amount is the final cost minus the sticker price:

70.75 - 70.75/(1+r) = 5.66

Answer 4

Ok thanks : ))

Answer 5

Jenny buys scrapbooking supplies for $70.75, not including tax. The store adds $5.66 in sales tax to her total cost of supplies.

What is the sales tax rate on the supplies? If necessary, round your answer to the nearest tenth.

Mine is multiple choice,
A) 7.5%
B) 8%
C) 7%
D) 9%