Answer:
Step-by-step explanation:
The given equations are:
 (1)
                     (1)
 and  (2)
                 (2)
Now, simply adding equation (1) and equation (2), we get



Now, substituting the value of x=6 in equation (2). we get




Thus, the values of x and y are 6 and 1 respectively.
In order to solve the system of solution, beau can see that in both  the given equations, coefficient of y is same and is with opposite sign, thus simply adding both the equations will eliminate y and she will get the value of x and then substituting the value of x in any of the equations, she can get the value of y. With this, she can get closer to the solution.
 
        
             
        
        
        
The answer is 30 
Explanation: 
So all of the angles in a triangle add up to 180 degrees and so if you split the triangle into separate triangles then you can add up the angles that are known and subtract from 180 to get the size of the missing angle e.g 90 + 56 = 146, 180 -146 = 34 for the other triangle 90 + 26 = 116, 180 - 116 = 64 and so 64 - 34 = 30
        
             
        
        
        
Answer:
Sqrt of 6 = 2.449… round = 2.4 is less than 2.5
Step-by-step explanation:
 
        
             
        
        
        
A chemical process by which autotrophs prepare there own food is called photosynthesis