Answer: the amount that Ricardo charges for 1 taco is $2
Explanation:
Let x represent the amount that Ricardo charges for 1 taco.
At Ricardo's Tacos, four tacos and two orders of chips cost the same as two tacos and four orders of chips.
If Ricardo's charges $2.00 for a single order of chips, then the cost of four tacos and two orders of chips is
4x + 2 × 2
= 4x + 4
Also, the cost of two tacos and four orders of chips would be
2x + 4 × 2
= 2x + 8
Since they cost the same, then
4x + 4 = 2x + 8
4x - 2x = 8 - 4
2x = 4
x = 4/2
x = 2