Question

If three tacos and two drinks cost $13.00, and four tacos and one drink costs $15.25, how much does a taco cost?

Answer 1

Answer: $3.5

Explanation:

3x+2y=13

4x+y=15.25

System of equations

I solved using elimination but there are other methods

3x+2y=13

-8x-2y=-30.5

The y cancels out

3x=13

-8x=-30.5

=

-5x= -17.5

Solve

x=3.5

ANSWER: $3.5