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20 January, 07:38

A bottle and a cork together cost $1.20. if the bottle causes $.90 more than the twice the cork. how much does the core cost how much does the bottle cost

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Answers (2)
  1. 20 January, 08:03
    0
    The bottle cost 90 cents and the cork costs 30 cents

    Step-by-step explanation:

    30 + 90 = 120
  2. 20 January, 08:08
    0
    The bottle costs $1.10 and the cork costs $0.10.

    Step-by-step explanation:

    x = cost of the bottle in cents

    y = cost of the cork in cents

    x + y = 120

    x = 2y + 90

    Solve the system of equations with substitution or elimination. Using substitution:

    2y + 90 + y = 120

    3y + 90 = 120

    3y = 30

    y = 10

    x = 110

    The bottle costs $1.10 and the cork costs $0.10.
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