At a concession, five hot dogs and two hamburgers cost $12.00; two hot dogs and five hamburgers cost $14.25. Find the cost of one hot hot dog and the cost of one hamburger.

Guest Apr 1, 2020

#2**-1 **

Notice that there's a bit of symmetry in this problem you can use to your advantage. Trying adding the two equations together!

Impasta Apr 1, 2020

#3**+1 **

I think I answered this one before...or a VERY similar one

5 d + 2 h = 1200 Multiply THIS equation by - 2.5 and add to the next equation to get the third equation

2 d + 5 h = 1425

-10.5 d = 1575

d = 150 or $ 1.50 use this value for 'd' to sub into one of the equations to compute h

ElectricPavlov Apr 1, 2020