
Maria F. answered 01/23/17
Tutor
0
(0)
Maria - Experienced Tutor Specializing in Math and Sciences
First calculate what the tip is going to be since the problem specifies that it must be calculated before applying the discount.
20% tip -> 20/100 = 0.20
You calculate 20% of 75.68 by multiplying 75.68 × 0.20. This will give you the amount you will leave as tip.
After doing this you move on to calculating the discount which is 15%. Do so following the same steps as before
15% -> 15/100 = .15
Multiplying 75.68 × 0.15 will give you the amount of money that you get off of your regular price.
Once you know how much money off you're supposed to get with the discount you need to subtract that amount from 75.68 to get the new price of the meal with 15% off. Once you do that add the tip you calculated to get the total.
I hope this helps. If you need any more help with this class please don't hesitate to contact me. I am available for online tutoring sessions.