5. machine a can complete a certain job in x hours. machine b can complete the same job in y hours. if a and b work together at their respective rates to complete the job, which of the following represents the fraction of the job that b will not have to complete because of a's ?
Answers: 1
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Why does a collision with an airbag cause less damage than a collision with a steering wheel
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5. machine a can complete a certain job in x hours. machine b can complete the same job in y hours....
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