SOLUTION: PLEASE HELP ME WITH THIS PROB. ITS DUE IS TOMORROW AND IT IS EQUIVALENT TO A QUIZ! on monday headley paid $1.70 for two cups of coffee and one doughnut including the tip. On tuesd

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Question 130903This question is from textbook ALGEBRA FOR COLLEGE STUDENTS MARK DUGOPOLSKI
: PLEASE HELP ME WITH THIS PROB. ITS DUE IS TOMORROW AND IT IS EQUIVALENT TO A QUIZ!
on monday headley paid $1.70 for two cups of coffee and one doughnut including the tip. On tuesday he paid $1.65 for two doughnuts and a cup of coffee, including the tip. On wednesday he paid $1.30 for one coffee and one doughnut, including the tip. If he always tips the same amount, then what is the amount of each item?Thank for your help! This question is from textbook ALGEBRA FOR COLLEGE STUDENTS MARK DUGOPOLSKI

Answer by edjones(8007) About Me  (Show Source):
You can put this solution on YOUR website!
1.70-1.30=.40 cost of a cup of coffee.
1.65-1.30=.35 cost of a donut.
1.30-40-.35=.55 tip
.
Ed