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 2 years ago
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
 2 years ago
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

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mahmit2012
 2 years ago
Best ResponseYou've already chosen the best response.0dw:1337048774351:dw

thejoshfish
 2 years ago
Best ResponseYou've already chosen the best response.1just solve the equation.. it's not that hard.

mahmit2012
 2 years ago
Best ResponseYou've already chosen the best response.0dw:1337049106838:dw

thejoshfish
 2 years ago
Best ResponseYou've already chosen the best response.1test it. 3.5+2=5.5 5.5(25)=137 so no

sputnik
 2 years ago
Best ResponseYou've already chosen the best response.1I would start by multiplying the equation out. 25z + 50 = 125. Then I would solve for z. First isolate it: 25z = 75 And then divide by 25. z = 3.

thejoshfish
 2 years ago
Best ResponseYou've already chosen the best response.1well your math book is wrong then.

OwlEyes
 2 years ago
Best ResponseYou've already chosen the best response.0No i wrote it wrong!! lol Its: 25^(z+2)=125

sputnik
 2 years ago
Best ResponseYou've already chosen the best response.1You need to take the log of both sides then solve for z..

sputnik
 2 years ago
Best ResponseYou've already chosen the best response.1It looks like this: 2 * ln(5) * z + 4 * ln(5) = 3 * ln(5)

OwlEyes
 2 years ago
Best ResponseYou've already chosen the best response.0I dont know what that means??

sputnik
 2 years ago
Best ResponseYou've already chosen the best response.1And to finish it up as in actually compute it you need to use a calculator because the decimals are messy. 3.21 * z + 6.43 = 4.82 And solve for z.

sputnik
 2 years ago
Best ResponseYou've already chosen the best response.1You will get z = 0.5. Is that one of the options?

OwlEyes
 2 years ago
Best ResponseYou've already chosen the best response.0Yepp:)) Thanks sooo much!

sputnik
 2 years ago
Best ResponseYou've already chosen the best response.1No prob. Thanks for the medal. And for the logs, on the right hand side, 125 = 5 ^ 3. so it equals 3 * ln(5). The exponent out front and the log of what the exponent worked on.

OwlEyes
 2 years ago
Best ResponseYou've already chosen the best response.0Ohhh gotcha! Thanks again and you deserve it:)
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