Question

Lin's father is paying for a $20 dollar meal. He has a 15% coupon for the meal. After the discount, a 7% sales tax is applied. -What does lin's father pay for the meal?

Answer 1

$18.82

Explanation:

To answer this question, we have to apply each percentage at a time.

Applying the 15% off from the coupon, the price would be:

`20-0.15(20)=17`

Now, we the discount, we need to add the 7% from sales tax:

`17+0.07(17)=18.81`

Therefore, Lin's father have to pay $18.82 for the meal.

Answer 2

$18.19

Explanation:

To find the total, apply the discount to the meal then add the tax.

Find the discount by multiplying the decimal conversion of the percent you pay to the price. He receives 15% off so he pays 85% of the price.

20(0.85) = 17

Tax is calculated by 0.07*17 = 1.19.

Add the tax to the discounted price.

17 + 1.19 = 18.19