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Maths algebra

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Wilma went to the local market and bought 3 lemons and 5 oranges for $2.40.The same day and for the same price ,Fran bought 4 lemons and 7 oranges for $3.31.What was the prices per lemon and the price per orange?

  • Maths algebra - ,

    3L + 5O = 2.40

    4L + 7O = 3.31

    Multiply fist equation by 4 and second by 3, then subtract one from the other. Insert the orange price into one of the equations to find the lemon price.

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