Answer:
You answered 201/500 of the questions correctly
Step-by-step explanation:
40.2/100=402/1000=201/500
 
        
             
        
        
        
Answer:
Hence the simplification of  is
 is 
Step-by-step explanation:
<em>" Simplification is the process of replacing a mathematical expression by an equivalent one, that is simpler (usually shorter), </em>
<em>for example</em><em>: Simplification of a fraction to an irreducible fraction ". </em>
Here we are given a fraction as:

As both the numerator and denominator are divisible by a factor of 3 hence we take out the common factor and obtain the reduced fraction which is further irreducible.
As 66=3×22  and 81=3×27
Hence 
Hence the simplification of  is
 is 
 
        
             
        
        
        
Answer:
3.5
Step-by-step explanation:
70 percent of 20 is 16.5 so if 16.5 - 20 is 3.5 then that's the answer
 
        
             
        
        
        
Answer:
7/20
Step-by-step explanation:
first of all you have to put the two fractions on the same denominators
1/4 (multiply by 5) and you will get 5/20
2/5(multiply by 4) and you will get 8/20
we have to add 5/20 and 8/20 that gives us 13/20
13/20 is the amount he drank
20/20 - 13/20 =7/20
7/20 is the amount of water left that Charlie has left
 
        
             
        
        
        
Well the slope formula is y² - y¹ / x² - x¹.
If there was a picture I could help!