+0  
 
0
126
1
avatar+234 

[  5  _  2y  +  y-2 _ 3y+1  >=  1 - y + 3y-2 + 7y _ 3y-4 ]

[  8      3        6      144                   36     12     16  ]    TIMES 144

 

-This symbol -> [

                      [  is just one bracket 

-the underlines are fractions 

- >= means greater than or equal to

-everything in the square bracket times 144(LCM)

- answer= 5 stars

-my answer when doing this was y<= -4 19/24

HelpMeWithThisPlease  Mar 26, 2017
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1+0 Answers

 #1
avatar+75287 
+1

If I understood this correctly, we have

 

5/8 -  2y/3 + (y -2) /6 - [ 3y + 1] /144  ≥  1 - y + [3y -2] / 36  + 7y / 12 - [ 3y - 4] /16

 

Multiply through by 144

 

90 -  96y + 24(y -2)  - [3y +1]   ≥  144 - 144y + 4[3y - 2]   + 84y  -  9[3y - 4]

 

90 - 96y  + 24y - 48 - 3y - 1   ≥     144 - 144y + 12y  - 8   + 84y - 27y  +  36

 

41 - 75y  ≥  172 - 75 y

 

41 ≥  172

 

-131 ≥  0     never true, thus.....no solution

 

 

 

cool cool cool

CPhill  Mar 26, 2017

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