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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
 one year ago
 one year 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
 one year ago
 one year ago

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mahmit2012Best ResponseYou've already chosen the best response.0
dw:1337048774351:dw
 one year ago

thejoshfishBest ResponseYou've already chosen the best response.1
just solve the equation.. it's not that hard.
 one year ago

mahmit2012Best ResponseYou've already chosen the best response.0
dw:1337049106838:dw
 one year ago

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

sputnikBest ResponseYou've already chosen the best response.1
I 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.
 one year ago

thejoshfishBest ResponseYou've already chosen the best response.1
well your math book is wrong then.
 one year ago

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

sputnikBest ResponseYou've already chosen the best response.1
You need to take the log of both sides then solve for z..
 one year ago

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

OwlEyesBest ResponseYou've already chosen the best response.0
I dont know what that means??
 one year ago

sputnikBest ResponseYou've already chosen the best response.1
And 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.
 one year ago

sputnikBest ResponseYou've already chosen the best response.1
You will get z = 0.5. Is that one of the options?
 one year ago

OwlEyesBest ResponseYou've already chosen the best response.0
Yepp:)) Thanks sooo much!
 one year ago

sputnikBest ResponseYou've already chosen the best response.1
No 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.
 one year ago

OwlEyesBest ResponseYou've already chosen the best response.0
Ohhh gotcha! Thanks again and you deserve it:)
 one year ago
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