danielspence3
danielspence3
30-12-2014
Mathematics
contestada
8/2z=15/60 .solve proportion.
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konrad509
konrad509
30-12-2014
[tex]\dfrac{8}{2z}=\dfrac{15}{60}\\ \dfrac{4}{z}=\dfrac{1}{4}\\ z=16[/tex]
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Аноним
Аноним
30-12-2014
[tex]\frac{8}{2z}=\frac{15}{60}\ \ \ \ \ |cross\ multiply\\\\2z\cdot15=8\cdot60\\\\30z=480\ \ \ \ |divide\ both\ sides\ by\ 30\\\\\boxed{z=16}[/tex]
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