Question

Lins father is paying for a $20 meal he has a 15% off coupon after he discount a 7% sale tax is applied how much would lins father pay

Answer 1

Answer: $18.19

Step-by-step explanation:

Given

The original Price of the meal is $\ 20$

After a 15% discount, the price reduced to

$\Rightarrow \text{Reduced Price}=20\times -20\times 0.15\\\Rightarrow \text{Reduced Price}=20[1-0.15]=20\times 0.85\\\Rightarrow \text{Reduced Price}=\ 17$

After this, a sales tax is applied

So, there would be an increase in price

$\Rightarrow \text{New Price}=17+17\times 0.07\\\Rightarrow \text{New Price}=17[1+0.07]=17\times 1.07\\\Rightarrow \text{New Price}=\ 18.19$

So, the father pays an amount of $\ 18.19$