At a concession stand, five hot dog(s) and two hamburger(s) cost $12.00; two hot dog(s) and five hamburger(s) cost $14.25. Find the cost of one hot dog and the cost of one hamburger.

Answer 1

5d + 2h = 12

2d +6h = 14.25

15d + 6h = 36

13d = 22.75

d = 22.75/13= about $1.67 for a dog

2h =12- 5(1.67) = 12 -8.35 = $3.65

h = about $1.81 for a burger