Question 760625
Hot Dogs = x
Potato Chips = y
5x + 4y = 1950......1
2x + 5y = 1375......2
Multiply (1) by 5 and (2) by 4
25x + 20y = 9750....3
 8x + 20y = 5500....4
Subtract (4) from (3)
 17x      = 4250
   x      = 250
Substitute x = 250 in (2)
2x + 5y + 1375
2(250) + 5y = 1375
     500 + 5y = 1375
          5y = 875
           y = 175
Hot Dogs cost $2.50
Potato Chips cost $1.75
Hope this helps.
:-)