9514 1404 393
Answer:
   x = (ab +a +b +c)/(a +b)
Step-by-step explanation:
Eliminate parentheses, subtract left terms not containing x, divide by the coefficient of x.
   
 
        
             
        
        
        
Answer: -4x+5>-5=x>2.5
-25>-5(x+2.5)=x<2.5
Step-by-step explanation:
-4x+5>-5 -25>-5(x+2.5) 
 -5 -5 -25>-5x-12.5 
-4x>-10 +12.5 +12.5
/-4 /-4 -12.5>-5x 
x>2.5 /-5 /-5
 2.5>x
 x<2.5
 
        
             
        
        
        
Answer:
300000
Step-by-step explanation:
Three hundred thousand 
 
        
             
        
        
        
Answer:
   x = 14
Step-by-step explanation:
Extend line AB so that it intersects ray CE at point G. Then angles BGC and BAD are "alternate interior angles", hence congruent. 
The angle at B is exterior to triangle BCG, and is equal to the sum of the interior angles at C and G:
   138 = (376 -23x) +(x^2 -8x)
Subtracting 138 and collecting terms we have ...
   x^2 -31x +238 = 0
For your calculator, a=1, b=-31, c=238.
__
<em>Additional comment</em>
You will find that the solutions to this are x = {14, 17}. You will also find that angle BCE will have corresponding values of 54° and -15°. That is, the solution x=17 is "extraneous." It is a solution to the equation, but not to the problem.
For x=14, the marked angles are A = 84°, C = 54°.
 
        
             
        
        
        
It is cheeper to buy 127g of cookies for 7.03$. If you divide the cookie price by the G(cookies) you can see what price is higher.