What is the cost of a $8.99 gourmet cheeseburger that has a tax rate of 9%?

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1 Answer
EZ as pi
Jul 20, 2018

#$9.80#

Explanation:

Tax of #9%# will be added to #$8.99#

Find the tax: #9/100 xx 8.99 =0.8091#

Cost = #$8.99+$0.81 = $9.80#

You can also add the percentages first.

#100%+9% = 109%#

Now finding #109% " of " $8.99# will give the final answer immediately:

#109/100 xx 8.99 = $9.7991 to $9.80#

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