3x - 6y = 20
-6y = -3x + 20
y = 1/2x - 20/6.....slope = 1/2...y int = -20/6 = -10/3
2x - 4y = 3
-4y = -2x + 3
y = 1/2x - 3/4..slope = 1/2...y int = -3/4
same slope, different y int = parallel lines = no solution = inconsistent
        
                    
             
        
        
        
Answer:
x = 4
Step-by-step explanation:
Using the rule of logarithms
 x = n , then x =
 x = n , then x = 
Given
 (5 + 11x) = 2 , then
 (5 + 11x) = 2 , then
5 + 11x = 7² = 49 ( subtract 5 from both sides )
11x = 44 ( divide both sides by 11 )
x = 4
 
        
             
        
        
        
Answer:
approximately 6.708 feet
Step-by-step explanation:
We use the Pythagorean theorem to solve the problem, using 3 feet and 6 feet as the legs of a right angle triangle. The diagonal of the screen is therefore the "hypotenuse" of this right angle triangle, and can be determined via the formula:

which is approximately 6.708 feet
 
        
             
        
        
        
80/100*n=16
80n=1600
n=1600/80=160/8=20
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Original price: $20.00
        
                    
             
        
        
        
Answer:
-3 ,-4
Step-by-step explanation: