Ava’s lunch bill was $8.70 and Allanah’s was $10.30. The girls’ uncle paid for the lunches and left a 15% tip. What amount did t
2 answers:
You might be interested in
Answer:
x=7
y =-1
Step-by-step explanation:
Given is a system of equations in x and y as
This can be written in matrix form as
Ax = B
Let us find inverse of A
X= A ^(-1) B
x=7, y =-1