Answer:
Coupon 1
Step-by-step explanation:
Purchase list :
1/2 lb cheese
3 lbs sliced ham
2 loaves of bread
4 bags of potato chips
1 container of salsa.
Cost of 1 lb cheese = $1.99
So, cost of 1/2 lb = ![1.99 \times \frac{1}{2}](https://tex.z-dn.net/?f=1.99%20%5Ctimes%20%5Cfrac%7B1%7D%7B2%7D)
= ![0.955](https://tex.z-dn.net/?f=0.955)
Cost of 1 lb sliced Ham = $3.29
So, cost of 3 lb Sliced Ham = ![3.29 \times 3](https://tex.z-dn.net/?f=3.29%20%5Ctimes%203)
=
Cost of 1 loaf of bread = $ 1.59
So, cost of 2 loaves of bread = ![1.59 \times 2](https://tex.z-dn.net/?f=1.59%20%5Ctimes%202)
=
Cost of 2 bags of potato chips = $ 3
So, cost of 4 bags = $3+$3 = $6
Cost of 1 container of salsa = $1.39
So, total cost of purchase before sales tax =
= ![21.395](https://tex.z-dn.net/?f=21.395)
Now The food sales tax is 3%.
So, 3% of total = ![3% \times 21.395](https://tex.z-dn.net/?f=3%25%20%5Ctimes%2021.395)
= ![\frac{3}{100} \times 21.395](https://tex.z-dn.net/?f=%5Cfrac%7B3%7D%7B100%7D%20%5Ctimes%2021.395)
= ![0.64185](https://tex.z-dn.net/?f=0.64185)
Thus total cost including sales tax = ![21.395+0.64185](https://tex.z-dn.net/?f=21.395%2B0.64185)
= $22.036
Coupon 1: $4.00 off if your purchase totals more than $15.00
Since total cost is more than $15
So, $4 is off on total cost
So, total cost after coupon is applied = $22.036-$4 =$18.036
Coupon 2: 10% off if the total is more than $20.00.
So, 10% of total cost = ![10\% \times 22.036](https://tex.z-dn.net/?f=10%5C%25%20%5Ctimes%2022.036)
= ![\frac{10}{100} \times 22.036](https://tex.z-dn.net/?f=%5Cfrac%7B10%7D%7B100%7D%20%5Ctimes%2022.036)
= ![2.2036](https://tex.z-dn.net/?f=2.2036)
So, total cost after getting 10 % off = ![22.036-2.2036](https://tex.z-dn.net/?f=22.036-2.2036)
=19.8324
So, total cost after coupon 2 is applied = $19.8324
Hence coupon 1 will save the most money .