Dave has a 30% off coupon for a pair of jeans priced at $78.95. he will also have to pay 6% sales tax and a 1% local option tax at the register. how much will he have to pay for the jeans
$59.13 -- do 78.95 x .7 to get 70% of the original price (30% off) and then multiply that number by 1.07 to get the total plus 7% tax.
Hence, the amount he have to pay for the jeans is:
$ 59.13355
The marked price for a pair of jeans is: $ 78.95
Now he has to pay 6% sales tax and 1% local option tax.
This means that 7% of the tax is to be paid.
Hence,the cost that is paid on tax is:
\(\dfrac{7}{100}\times 78.95\\\\\\=5.5265\)
= $ 84.4765
Also, there is a coupon with 30% off.
This means that the cost of jeans after applying coupon will be:
\((100-30)\%\times 84.4765\\\\\\=70\%\times 84.4765\\\\=\$ 59.13355\)
The amount that will be paid on jeans is:
$ 59.13355