chancestevenson chancestevenson

08-08-2016
Mathematics

contestada

Find the value of X to the nearest tenth.
9.0
16.0
17.3
25.0

Find the value of X to the nearest tenth90160173250 class=

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dalendrk dalendrk

08-08-2016

[tex]\dfrac{3x-2}{21}=\dfrac{50}{21+21}\\\\\dfrac{3x-2}{21}=\dfrac{50}{42}\ \ \ \ |cross\ multiply\\\\42(3x-2)=21\cdot50\\\\126x-84=1050\ \ \ |add\ 84\ to\ both\ sides\\\\126x = 1134\ \ \ \ |divide\ both\ sides\ by\ 126\\\\\boxed{x=9.0}[/tex]

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