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16 June, 05:23

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

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  1. 16 June, 05:49
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    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
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