Answer:
Two lines or shapes that lie exactly on top of each other. Example: these two lines are coincident, only you can't see them both, because they are on top of each other.
Step-by-step explanation:
 
        
             
        
        
        
Answer:
B
Step-by-step explanation:
Answer is 35
 
        
                    
             
        
        
        
1) 13a=-5
Make a the subject of the formula by dividing both sides by 13(the coefficient of a)
13a/13=-5/13
Therefore a= -0.385
The second one). 12-b= 12.5
You take the 12 to the other side making b subject of the formula (-b in this case)
-b= 12.5-12
-b= 0.5
(You cannot leave b with a negative sign so you will divide both sides by -1 to cancel out the negative sign)
-b/-1= 0.5/-1
Therefore b=-0.5
The third one). -0.1= -10c
You will divide both sides by the coefficient of c(number next to c) which is -10
-0.1/-10= -10c/-10
Hence, c= 0.01
        
             
        
        
        
The answer is a = 
Step-by-step explanation:
<em>1. Convert the mixed fraction to an improper fraction</em>
To find the numerator, multiply the denominator by the whole number and add the numerator to it.
The denominator remains the same.
So, 2 will be
 will be 
<em>2. Now the equation is,</em>
 a -
 a -  a =
 a =  +
 +  a
 a
<em>3. Take LCM on both sides. </em>
For the left side, multiply the first fraction by  and multiply the second fraction by
 and multiply the second fraction by 
 a -
 a -  a =
 a = 
<em>4. Solve by making a the subject</em>
 =
 = 
 =
 = 
 =10+8a
 =10+8a
 = 10 + 8a
 = 10 + 8a
a = 2(10 + 8a)
a = 20 + 16a
a-16a = 20
-15a = 20
a = 
a = 
Therefore, the answer is a = 
Keyword: Equations
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