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