To find the greatest common factor of 40 and 27, we can first start by making a list of factors for each number.
The factors of 27 are: 1, 3, 9, 27
The factors of 40 are: 1, 2, 4, 5, 8, 10, 20, 40
When looking at these numbers, we can see that 1 is the greatest common factor of both 40 and 27.
 
        
             
        
        
        
Answer:
No solution
Step-by-step explanation:
To eliminate is to get rid of one of the variables.
You can choose to either add each term in the equations or subtract each term in the equation.
For a variable to be eliminated, there must one pair that have the same constant with it. Each equation already has the same constant with a variable.
Try adding them.
.     y - x = 15
<u>+    y - x = 5</u>
 2y - 2x = 20   No variables were eliminated.
Try subtracting.
.     y - x = 15
<u>-     y - x = 5</u>
0y - 0x  = 10   All variables were eliminated.
.         0 = 10     This is false.
This system of equations cannot be solved.
Graphically, these two lines would have the same slope and are parallel. The solution to a system is same as the point of intersection. Parallel lines never meet, never intersect, therefore there is no solution.
 
        
             
        
        
        
Answer:
The second answer
XYZ-RQS
Step-by-step explanation:
 
        
             
        
        
        
Subtract 3 both sides first. R-3=ts²
next, divide both sides by t, (R-3)/t=s²
finally, take the square root of both sides
√(R-3)/t = s. 2nd choice.
        
                    
             
        
        
        
Answer:l
Step-by-step explanation:L