Question

Which of the following is the solution to the equation 25(z + 2) = 125?

z = 5.5
z = 3.5
z = −2.5
z = −0.5

Answer 1

$25^{z+2}=125\\\\(5^2)^{z+2}=5^3\\\\5^{2(z+2)}=5^3\\\\2(z+2)=3\qquad|:2\\\\\\z+2=\dfrac{3}{2}\\\\\\z=\dfrac{3}{2}-2\\\\\\\boxed{z=-\frac{1}{2}=-0.5}$

Answer D.

Answer 2

Answer:

d) z= -0.5

Step-by-step explanation:

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