Anna's Dinner in DC (EEA3 EEB7)

Posljednje ažuriranje about 5 years ago

Napomena autora:

based on illustrative mathematics http://tasks.illustrativemathematics.org/content-standards/6/EE/A/3/tasks/997

Anna enjoys lunch at a restaurant in Washington, D.C., where the sales tax on meals is 10%. The tax is calculated on the cost of the meal without tax or tip. Anna's 15% tip is also based on the cost before tax or tip.
She spends a total of $27.50. What is the cost of her meal without tax or tip?
Show your calculations for credit.