We need to write the following expression and solve for x:
9/18 = 100/x
So: 9x = 1800
x = 200
So it would take him 200 minutes to deliver 100 papers.
We do the same for 72 papers
9/18 = 72/x
so 9x = 1296
and x = 144
It would take him 144 minutes to deliver 72 papers. 
 
        
             
        
        
        
First you find the area of the front face 1/2bh or in you case 10x12=120  1/2 of 120 is 60  next you multiply 60 by 20 to get 1,200 for the voulume 
        
             
        
        
        
Answer:
a letter in a math problem
 
        
                    
             
        
        
        
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The 2 right triangles are similar and so the ratios of corresponding sides are equal
The corresponding sides are x and 2, 6 and 1.5, hence
 = 
 
        
             
        
        
        
Answer:
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Step-by-step explanation: