Question

Check my work Lucky you! You went to couponcabin.com and found a 20% off coupon to your significant other's favorite store. Armed with that coupon, you went to the store only to find a storewide sale offering 20% off everything in the store. In addition, your credit card has a special offer that allows you to save 10% if you use your credit card for all purchases that day. Using your credit card, what will you pay before tax for the $140 gift you found? Use the single equivalent discount to calculate how much you save and then calculate your final price. (Do not round intermediate calculations. Round your final answers to the nearest cent.) Book Hent Savings Final price

Answer 1

Answer: Final price would be $80.64.

Step-by-step explanation:

Since we have given that

Coupon off = 20%

Off on everything = 20%

Save = 10%

So, Effective rate would be

$1-[(1-0.2)\times (1-0.2)\times (1-0.1)]\\\\=1-[0.8\times 0.8\times 0.9]\\\\=1-0.576\\\\=0.424$

Amount he pay before for the gift = $140

So, Amount of saving is given by

$140\times 0.424\\\\=\ 59.36$

So, Final price would be

$140-59.36\\\\=\ 80.64$

Hence, final price would be $80.64.