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If 2x = 5y and 7y = 15z, what is the value of z/x expressed as a common fraction?

 Oct 21, 2020
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multiply first equation by   7 to get       14x = 35y

multiply second equation by 5 to get   35y=75z         use 1st equation in second equation

 

14x = 75z

z/x  14/75     

 Oct 21, 2020

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