Question

z/z+15=4/9, help me I have questions?

Answer 1

$\frac{z}{z + 15} = \frac{4}{9} \\ \\ 4(z + 15) = 9z \\ \\ 4z + 60 = 9z \\ \\ 5z = 60 \\ \\ z = 12$

Answer 2

Answer:

$Value \: of \: z = 12$

Step-by-step explanation:

$Given \: simple \: equation \: \\ \frac{z}{z+15}=\frac{4}{9}$

Do the cross multiplication, we get

$\implies 9z = 4(z+15)$

$\implies 9z = 4z+60$

$\implies 9z-4z= 60$

$\implies 5z = 60$

$\implies z= \frac{60}{5}$

$\implies z=12$

Therefore,

$Value \: of \: z = 12$

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