Question

kest kuy is offering a sale on its laptop computers with a 20 percent discount off its original price. there is 8% sales tax added to the discounted price to get the final price of the computer. if x is the original price and y is the final price, write an equation to determine the final price based upon the original price.

Answer 1

Answer:

$y = 0.88x$

Step-by-step explanation:

Given

$Discount = 20\%$

$Sales\ Tax = 8\%$

Required

Determine the final price

First, we need to determine the sales price after the discount.

$Discount = 20\% * x$

$Discount = 0.20 * x$

$Discount = 0.20x$

$Sales\ Price = x - Discount$

$Sales\ Price = x - 0.20x$

$Sales\ Price = 0.80x$

Next, is to determine the sales tax.

$Sales\ Tax = 8\% * x$

$Sales\ Tax = 0.08 * x$

$Sales\ Tax = 0.08x$

Final Price, y is then calculated as thus:

$y = Sales\ Price + Sales\ Tax$

$y = 0.80x + 0.08x$

$y = 0.88x$