Answer:
a) 10x + 8 = 21
b) x = 1.3
Step-by-step explanation:
The line of symmetry is a vertical line that passes through point C.
That makes sides BC and CD congruent, and sides AB and ED congruent.
perimeter = AB + BC + CD + DE + EA
perimeter = 2x + 3 + x + 1 + x + 1 + 2x + 3 + 4x = 10x + 8
perimeter = 21
a) Equation:
10x + 8 = 21
b)
10x + 8 = 21
10x = 13
x = 1.3
 
        
             
        
        
        
Answer:
Don
Step-by-step explanation:
1. We make the fractions have common denominators so it is easier to compare them. We can do this buy multiplying 2/3 by a factor of 16, so it becomes 32/48. For 11/16, we multiply by a factor of 3 so it becomes 33/48. It is now apparent that Don has the longer pipe.
 
        
             
        
        
        
Answer:
Dylan
Step-by-step explanation:
Rate of Origami Making
1) June
= 10/30
= 1/3 origami birds per minute
2) Dylan
= 4/10
= 2/5 origami birds per minute
2/5 > 1/3
So Dylan was faster.
 
        
             
        
        
        
4x-16+14=16-4x+6. 
4x-16+14-16+4x-6=0(bring all values at one side) 
4x+4x+14-16-16-6=0(arrange) 
8x-24=0(solve) 
8x=24(bring 8 on right hand side so x is alone) 
X=24/8(solve) 
X=3
        
             
        
        
        
Answer:
Graph 4
Step-by-step explanation:
Parallel lines have no solution  to the system of equation.  Graph 4 is a set of parallel lines, so they will never intersect.