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

 Jan 21, 2022
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We can say 2.5y=x so 7y=2.8x. This means 2.8x=15z and that evaluates to z/x=2.8/15. This finally gives us the common fraction 14/75. So z/x = 14/75.

 Jan 21, 2022

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