Area of the electronic board is 9000 cm2
Step-by-step explanation:
Write ratios to represent the unknown actual length and width of the display to the scale length and width of the display.
The Electronic board always seems like a rectangular shape
Length= scale÷Actual = 5/36 = 5×36 = 180cm

Width=scale÷Actual = 1/50 = 1×50 = 50cm

Area of Rectangle = legnth × width 
                          = 180cm  × 50cm = 9000 cm2

Area of the electronic board is 9000 cm2
 
        
             
        
        
        
Answer:
y= -2/1x -4
Step-by-step explanation:
Hope it helped!
 
        
                    
             
        
        
        
9514 1404 393
Answer:
   r = 1/9
Step-by-step explanation:
First of all, solve the equation for r:
   y = rx
   y/x = r . . . . . . . divide by x
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Since r is a constant, it will be the same for any corresponding pairs of x and y. It is convenient to choose both x and y as integers, as in the third table entry.
   r = y/x = 5/45
   r = 1/9 . . . . . . . . . reduced fraction
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<em>Additional comment</em>
It is not a bad idea to check to see that this works with other values of x and y. For the first line of the table, we have x = 11:
   y = rx = (1/9)(11) = 11/9 = 1 2/9 . . . . matches the table value
 
        
             
        
        
        
The answer to your question is yes