His model is incorrect because 20 x 7 is not 14, it is 140. If he had 140 instead of 14, he would have been correct.
I haven't done division like that in a long time, so this is what I think it will look like. I didn't add other work (multiplying 4 with #'s) but you can if you have to
 
        
             
        
        
        
Step-by-step explanation:
<h3>(a) (iv) 3/14</h3>
<h3>(b) (iii) 11/14</h3>
<h3>(c) (i) 5/7</h3>
<h3>(d) (iv) 1/2</h3>
<h3>(e) (iv)The bead drawn is yellow .</h3>
 
        
                    
             
        
        
        
For this case, we must find the quotient of
 divided by
 divided by , to verify if Tina was correct.
, to verify if Tina was correct.
So:

So, Tina was wrong, she had to divide by 3x.
Answer:
Option B
 
        
             
        
        
        
Answer: negative 1 minus another negitive 1 give you zero/X
Step-by-step explanation:
 
        
             
        
        
        
I need more information about the dimensions of the barn