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

Question

4 years ago

8

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?

Mathematics

1 answer:

Nadusha1986 [10] · Answer 1 · 2021-11-16T06:48:22+03:00

Answer:

The final cost is $43.2

Step-by-step explanation:

We have the following equation:

$C=p(1+r)$

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:

$C=40*(1+0.08)=43.2$

Therefore, the final cost is $43.2