Subsitution word problem

Question

at a restaurant the cost for a breakfast taco and a small glass of milk is $2.10. The cost for 2 tacos and 3 small glasses of milk $5.15. Which pair of equations can be used to determine t, the cost of a taco, and m, the cost of a small glass of milk?

Answer 1

Morgan,

          Since the problem tells us that the cost of a breakfast taco and a small glass of milk is $2.10, we can write the equation

 

t + m = 2.10

 

Since the cost of two tacos and 3 small glasses of milk is $5.15, we can write the equation

 

2t + 3m = 5.15

 

Hope this helps.  :)

 

Gordon