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

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Answer 1 · 2018-07-20T07:04:42

$$ 9.80$ $$9.80$

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

Find the tax: $\frac{9}{100} \times 8.99 = 0.8091$ $9/100 xx 8.99 =0.8091$

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

You can also add the percentages first.

$100 % + 9 % = 109 %$ $100%+9% = 109%$

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

$\frac{109}{100} \times 8.99 = $ 9.7991 \to $ 9.80$ $109/100 xx 8.99 = $9.7991 to $9.80$