Question

Solve please Solve please Solve please Solve ​

Answer 1

Answer:

z=12

Step-by-step explanation:

hope it helps you a lot

Answer 2

Answer:

Z=12

Step-by-step explanation:

$\frac{z}{z + 15} = \frac{4}{9} \\ cross \: multiple \: use \: \\ z \times 9 = 4 \times z + 15 \\ 9z = 4z + 60 \\ 9z - 4z = 60 \\ 5z = 60 \\ z = \frac{60}{5} \\ z = 12$

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