Question

At Footlocker, Mark buys a pair of sneakers for $79.89 with a discount of 35%. There is also a sale of 2 shirts for $19.89. Mark buys a shirt. The sales tax is 6%. He also wants to give the sales person who helped him a 5% tip of what his total bill is with tax and discount included.

a) How much money does he spend on Footlocker? Justify your answer.

b) What if the discount for the pair of sneakers is now 32 1/2 %. What would be the new amount that Mark spends at foot locker?

Answer 1

First we find 35% 79.89, which is 27.96. we subtract that from 79.89 to find the sale price, which is 51.93.
Because Mark only buys one of the two shirts, we divide 19.89 by two to get the price of a single shirt. A single shirt costs 9.95. Mark's new total is 61.88.
For the sales tax, we find 6% of 61.88, which is 3.71, and we add it to the total. Mark now owes 65.59.
For the tip, we find 5% of 65.59, which is 3.28, and we add it to the total. Mark spent a total of 68.87 at Footlocker.

Answer 2

If the sneakers were 32.5% off, than we find 32.5% of 79.89, which is 25.96, and subtract it from 79.89. The sale price is 53.93.
We add the price of a single shirt, which we found in the first part of the problem. 53.93+9.95=63.88
For the sales tax we multiply 63.88 by .06, which equals 3.83, and we add it to the total for a new total of 67.71
We multiply 67.71 by .05 for the tip, 5% of 67.71 is 3.38. Our grand total is 67.71+3.38, which is 71.09