Question

Can someone please help me solve this?

Zoe paid $18.60 in sales tax and tips for her dinner. The sales tax rate is 11%, and she tipped 20%. (The sales tax does not apply to the tip, and the tip is based on the price of the dinner before sales tax.)
What was the price of Zoe's dinner, before sales tax and tip?

Answer 1

Answer:

$14.20

Step-by-step explanation:

in addition to paying for the dinner (x), she also has to pay 11% of it and another 20% of it. now we can combine like terms and solve.

x + 0.11x + 0.20x = 18.60

1.31x = 18.60

x = 14.20 (Ans.)