Lessons / Activities : Lessons for Calculators : Casio TEAMS Grant Algebra Lessons

Lessons 7

Gratuity on service at a restaurant is usually 15% of the cost of the meal before the tax is added to the bill.

Can you develop a table that displays what the amount of gratuity should be for meals costing between $20 and $200 with dollar increments of 10?

Let X represent the cost of the meal before the tax is added to the bill, and let Y be the amount of gratuity that should be left for the service provided.

1. Turn on the CASIO FX7400G.
   
   
2. Use your cursor arrows to highlight the TABLE menu and press   or just press when at the main menu screen.
   
3. On an available Y-slot enter the expression 0.15 X and press (Make sure no other Y-slot is highlighted, i.e. selected for computation.)
   

Press (RANG)

Scroll down and set the parameters as follows:

Press after entering each value.

Table Range:
X
Strt: 20
End: 200
ptch: 10

Press
Press (TABL)

Use your cursor arrows to move about the table that has been created.

Press
Press

Turn off the CASIO FX7400G.
(OFF)