8/2z=15/60 .solve proportion.

2 answers:

8 0

$\frac{8}{2z}=\frac{15}{60}\ \ \ \ \ |cross\ multiply\\\\2z\cdot15=8\cdot60\\\\30z=480\ \ \ \ |divide\ both\ sides\ by\ 30\\\\\boxed{z=16}$

ch4aika [34]3 years ago

4 0

$\dfrac{8}{2z}=\dfrac{15}{60}\\
\dfrac{4}{z}=\dfrac{1}{4}\\
z=16$

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