Math

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A cup of coffee costs 80c less than a burger.Together they cost 220c.
Use this information to form an equation and solve it.

This question I can't get my head around.
It's due in 2 days but I would like to get it done sooner.
Thanks.

  • Math -

    c + (c + 80) = 220

    2c = 140

    c = 70

    Coffee costs 70 c

    A burger costs 70 + 80 = 150 c

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