You and a friend have dinner at a restaurant. Your meal costs $15.85 and you leave an 18% tip and your friend's meal cost $.14.30 and he leaves a 20% tip. If the sales tax is 6%, who spend more on his or her total bill?

1 Answer
Feb 22, 2018

you paid more than your friend

Explanation:

you:
tip: 15.84+(15.84(.18))
15.84+2.8512
18.6912
tax: 18.6912+(15.84(.06))
18.6912+(.9504)
19.6416
the tip is about $2.85, the total minus tax is about $18.69, and the total including tax is about $19.64

your friend:
tip: 14.30+(14.30(.20))
14.30+2.86
17.16
tax: 17.16+(14.30(.06))
17.16+.858
18.018
the tip is about $2.86, the total minus tax is about $17.16, and the total including tax is about $18.02

19.64 is greater than 18.02, so you spent more