Answer:
z = 52.5
Explanation:
You want the solution for (4.8)/(2z+15)=(0.2)/(5).
Cross multiply
Multiplying by 5(2z +15) we have ...
5(4.8) = 0.2(2z +15)
24 = 0.4z +3 . . . . . . . . . . simplify
21 = 0.4z . . . . . . . . . . . . subtract 3
z = 21/0.4 = 52.5 . . . . divide by the coefficient of z
The value of z is 52.5.
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