Question

I buy 4 hamburgers and 3 sodas and it coast me $30. my brother buys 2 hamburgers and 2sodas and it coast him $16. what is the coast of each hamburger and each soda

Answer 1

Answer:hamburger is 6$

soda is 2$

Step-by-step explanation:

suppose

hamburger=x

soda=y

4x+3y=30..............(1`)

2x+2y=16...............(2)

multiply 2 to 2 no and do subtraction from 1 no to 2 no

     4x+3y=30

     4x+4y=32

   (-)   (-)    (-)  

        -y=-2

         y=2

place y=2 to 2 no

 2x+2y=16

2(x+y)=16

 x+y=16÷2

 x+2=8

 x=8-2

 x=6