Problema Solution
You and your friend go to a Mexican restaurant. You order 2 tacos and 2 enchiladas. Your frind orders 3 tacos and 1 enchilada. Your bill was $4.80. Your frinds bill was $4.00. What was the price of an enchilada?
Answer provided by our tutors
2x+2y = 4.8
3x+y = 4
or x+y = 2.4
putting in eqn 2 , we get
3(2.4-y)+y = 2.4
7.2 -3y+y = 2.4
2y = 4.8
y = 2.4
so $ 2.4 is answer