Mathematics, 17.09.2019 07:30 salvadorperez26

21 trucks, each with a 2.5-ton payload, are needed to unload a freight train. how many trucks, each with a 3.5-ton payload, would be needed to do the same job? what is the constant of variation?

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21 trucks, each with a 2.5-ton payload, are needed to unload a freight train. how many trucks, each...

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