Question

What’s the answer? At a concession stand, three hot dogs and two hamburgers cost $9.75; two hot dogs and three hamburgers cost $10.25. Find the cost of one hot dog and the cost of one hamburger.

Answer 1

thought we already did this.
3d+2h = 975
2d+3h = 1025
multiply #1 by 3 and #2 by 2 to get
9d+6h = 2925
4d+6h = 2050
now subtract to get
5d = 875
d = 175
so h = 225