Question

Lin’s father is paying for a $20 meal. He has a 15%-off coupon for the meal. After the discount, a 7% sales tax is applied.

What does Lin’s father pay for the meal?

Answer 1

18.19

Explanation:

Answer 2

Lin's father pay for the meal is $18.19.

Explanation:

Given:

Lin’s father is paying for a $20 meal.

He has a 15%-off coupon for the meal.

After the discount, a 7% sales tax is applied.

Now, to get the amount Lin's father pay for meal.

So, we deduct the 15% discount first:

$20 - 15% of $20.

`=20-(15)/(100)* 20`

`=20-0.15* 20`

`=20-3`

`=\$17.`

Then, adding 7% sales tax:

$17 + 7% of $17

`=17+(7)/(100)* 17`

`=17+0.07* 17`

`=17+1.19`

`=\$18.19`

Therefore, Lin's father pay for the meal is $18.19.