Question

The value of z in (z)/(z+5) =4/9 is
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Answer 1

Answer:

Step-by-step explanation:

(z)/(z+5)=4/9

9z=4z+20 (by cross multiplying)

5z=20

z=4  

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Answer 2

Answer:

z = 4

Step-by-step explanation:

z/(z+5) = 4/9

By Cross Multiplication

9z = 4(z+5)

9z = 4z + 20

9z - 4z = 20

5z = 20

z = 20/5

z = 4