5/16 = 25/80
3/8 = 30/80
2/5 = 32/80
Because 25/80<30/80<32/80, the washer with the size of 5/16 inch is the smallest~
        
             
        
        
        
The expression for the perimeter would be
2(x) + 2(2x+7)
which can be simplified to 2x+4x+14 
which equals 6x+14
        
                    
             
        
        
        
Step 1. Multiply 5 by y and you get 5y 
Step 2. Multiply 5 by .4(2/5) 
Step 3. Your equations will look like 5y+2=-13 
Step 4. Subtract 2 from its self and -13 
Step 5. Your equation will be 5y=-15 
Step 6. Divide 5 from both sides 
Step 7. Your answer is y=-3
        
                    
             
        
        
        
Answer:
Area = 16π
Step-by-step explanation:
Area of a circle = πr^2 
= 64π 
= sqrt64 
r = 8 because 8 × 8 is 64
Radius = 8
Now, use the circumference equation:
= 2πr 
= 2π(8)
= 16π
 
        
             
        
        
        
[ 2x + y = -9 ] x -3
[- 3x +11= y ] x 2
-6x -3y = 27 
-6x + 22 = 2y 
-6x +27 = 3y
-6x +22 = 2y 
5 = y 
-6x -3x5 = 27
-6x -15 = 27
-6x = 42
-x = 42/6
-x = 7
x = -7 
answer 
x = -7
y = 5