Answer:
x^2+1/x^2
(x+1/x)^2 = x^2+1/x^2 +2
(5)^2 = x^2+1/x^2 + 2
25 = x^2+1/x^2 + 2
25-2 = x^2+1/x^2
23 = x^2+1/x^2
Step-by-step explanation:
 
        
             
        
        
        
So we have:
xk = v + w           solve for x
divide both sides by k to isolate the variable x:
x = (v+w)/k
^^This is your answer!
Hope I helped!
        
             
        
        
        
Answer:  22.5 .  The weight of the elephant is "22.5 times greater" than                              the weight of the lion.
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Explanation:
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(weight of lion) * (x) = (eight of the elephant)  ;  Solve for "x" .
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   → Divide each side of the equation by "(weight of lion)" ; 
  to isolate "x" on one side of the equation ; and to solve for "x" ;
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   → (weight of lion)*(x) / (weight of lion) = (weight of the elephant) / 
                                                           (weight of lion) ;
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     →  x  = (weight of the elephant) / (weight of lion) ;
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     →  Plug in our "given values" ; and solve for "x" ;
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     →  x = (<span>9*10</span>³) / (4*10²) =  (9*10⁽³⁻²⁾) / 4  =  (9*10¹) / 4  ;
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     →  x =  90 /4 = 25/2  = 22.5 ; which is our answer.
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She should leave $30. Hope it helps! If you could vote me brainiest, that would be awesome!
        
                    
             
        
        
        
Answer:
x=2
Step-by-step explanation:
h(8)=5x-2
+2        +2
10=5x
Divide both sides by 5 
x=2