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 Solve the inequality 29/289z<16/161z. (There is a way to solve this problem without doing a lot of messy computations!) Enter your answer as

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Solve the inequality 29/289z<16/161z. (There is a way to solve this problem without doing a lot of messy computations!) Enter your answer as an inequality with just z on the left side. For example, if the inequality in the problem were true for all positive z, then you'd enter "z>0" (without the quotation marks). If it were true for all z less than or equal to 3, then you'd enter "z<=3".

 May 11, 2015

Best Answer 

 #3
avatar+128631 
+10

Let's look at this one again.....

 

29/289z<16/161z      subtract 16/161z from each side

29/289z - 16/161z  < 0   factor

[ 29/289 - 16/16] z < 0   divide both sides by [ 29/289 - 16/16]

1z < 0    or, just  ....  z < 0

 

  

 May 11, 2015

3+0 Answers

 #1
avatar+118608 
+5

XXX

Sorry wrong answer.  Chris's is the right answer.

I answered properly on your later repost.  Please repost as I have requested.  I would have come back here and fixed it quicker if you had done that.   

 May 11, 2015
 #2
avatar+1310 
+5

which one is it?

 May 11, 2015
 #3
avatar+128631 
+10
Best Answer

Let's look at this one again.....

 

29/289z<16/161z      subtract 16/161z from each side

29/289z - 16/161z  < 0   factor

[ 29/289 - 16/16] z < 0   divide both sides by [ 29/289 - 16/16]

1z < 0    or, just  ....  z < 0

 

  

CPhill May 11, 2015

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