Problema Solution

At the apple pan, three steak burgers and two orders of fries cost $18. Two steak burgers and three orders of fries cost $15.75. What is the cost for one steak burger?

Answer provided by our tutors

let


s = the cost of one steak burger

f = the cost of one order of fries


three steak burgers and two orders of fries cost $18


3s + 2f = 18


two steak burgers and three orders of fries cost $15.75


2s + 3f = 15.57


by solving the system of equations


3s + 2f = 18

2s + 3f = 15.57


we find


s = $4.572


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one steak burger costs $4.572.