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The tax rate as a percent, r, charge on an item can be determined using the formula c/p - 1 = r, where c is the disk cost of the time and p is the price of the item before tax. Louise rewrites the equation to solve for the final cost of the final item C = p(1+r). What is the final cost of a $40 item after an 8% tax is applied?

Respuesta :

Answer:

The final cost is $43.2

Step-by-step explanation:

We have the following equation:

[tex]C=p(1+r)[/tex]

Where C is the final cost, p is the price before tax and r is the tax rate.

So, to calculated the final cost for a $40 item after 8% tax, we need to replace p by 40 and r by 0.08 and calculate the value of C as:

[tex]C=40*(1+0.08)=43.2[/tex]

Therefore, the final cost is $43.2

Db77

Answer: $43.20

Step-by-step explanation: The simplest way to do it (my way) is i first used (1 + r), which is (1 + 8%), that gave me 1.08, then I did the total amount, $40x1.08, which equals $43.20. This may not be the right way to do it, but it is the simplest.

Hope this helped :)

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