Question

sunscreen is priced at $10 per bottle plus 8% tax if Tanya purchases a bottle of sunscreen with a $20 bill then what is her change

Answer 1

$9.20

10*1.08 is 10.80. 20 - 10.80 is 9.20.

Answer 2

$9.20

Explanation:

Hello, I think I can help You with this.

Step 1

find the total price of the sunscreen

Tany paid $10 + 8 % tax, it means she paid 108% of the $10, let's find that value using a rule of three

If

$10⇒100%

$x?⇒108%

the relation is

`(10)/(100)=(x)/(108)\\ solve\ for\ x\\(10*108)/(100)=x\\x=(1080)/(100)\\ x=10.8`

she paid $10.80

Step 2

find the difference between $20 and $10.80 to know her change

change=$20-$10.80

change=$9.20

have a great day