SOLUTION: At a restaurant, one hamburger and two orders of fries costs $2.50. Two hamburgers and three orders of fries costs $4.25. At this rate, find the cost of one hamburger and one order

Question 176557: At a restaurant, one hamburger and two orders of fries costs $2.50. Two hamburgers and three orders of fries costs $4.25. At this rate, find the cost of one hamburger and one order of fries.
Answer by Mathtut(3670) (Show Source): You can put this solution on YOUR website!
let the cost of a hamburger and order of fries be h and f respectively
:
h+2f=2.5......eq 1
2h+3f=4.25....eq 2
:
re write eq 1 to h=2.5-2f and take that value and plug it into eq 2
:
2(2.5-2f)+3f=4.25
:
5-4f+3f=4.25
:
-f=-.75
:
$per fries
:
$per hamburger
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