SOLUTION: a coffee cost .75 less than a slice of pie. If it cost 11.25 for three slices of pie and two coffees, determine the price of a coffee and the price of a slice of pie
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Question 1113818: a coffee cost .75 less than a slice of pie. If it cost 11.25 for three slices of pie and two coffees, determine the price of a coffee and the price of a slice of pie
Answer by jorel1380(3719) (Show Source): You can put this solution on YOUR website!
Let n be the cost of a slice of pie; and n-0.75 be the price of coffee. Then:
3n+2(n-0.75)=11.25
5n-1.50=11.25
5n=12.75
n=2.55
Pie is 2.55 a slice; and coffee is 1.80 a cup
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