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ikrabbe ikrabbe
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6 years ago
A machine requires five hours to make a unit of Product A and four hours to make a unit of Product B. Last month the machine operated for 440 hours producing a total of 100 units. How many units of each type of product did it produce?
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Contemporary Business Mathematics with Canadian Applications

Contemporary Business Mathematics with Canadian Applications


Edition: 11th
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6 years ago
Let the number of units of Product A be x and the number of units of Product B be y.
   x + y = 100
   5x + 4y = 440
   * 4    4x + 4y = 400
   5x + 4y = 440
   -x = -40
   x = 40
    40 + y = 100
   y = 60
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