My answer is A
Which of the following is the solution to the equation 25(z + 4) = 125 ? (3 points)
Answer

z = 5.5

z = 3.5

z = -2.5

z = -0.5

Question

My answer is A
Which of the following is the solution to the equation 25(z + 4) = 125 ? (3 points)
Answer
		
z = 5.5
		
z = 3.5
		
z = -2.5
		
z = -0.5

mathstudent55 · Answer

Are you sure you have the correct problem and solution choices?

anonymous · Answer

$$25^{z+4}=125$$
$$5^{2(z+4)}=5^3$$
$$2z+8=3$$ solve for $z$

anonymous · Answer

yes, i'm sure

anonymous · Answer

so it is not A, you have to solve 
$$2z+8=3$$$$2z=-5$$$$z=-\frac{5}{2}=-2.5$$

anonymous · Answer

the gimmick is to rewrite so both sides have the same base

anonymous · Answer

ohhh.... i see what youre doing...i was way offf!!! ooops

anonymous · Answer

thank you. this helps loads

mathstudent55 · Answer

I see from satelite that z + 4 is an exponent. Now the solution choices make sense.

anonymous · Answer

on the left you have $25=5^2$ and on the right you have $125=5^3$

mathstudent55 · Answer

You meant 25^(z + 4) = 125