Answer:
9:1
Step-by-step explanation:
Try to reduce the ratio further with the greatest common factor (GCF).  
The GCF of 72 and 8 is 8  
Divide both terms by the GCF, 8:
72 ÷ 8 = 9
8 ÷ 8 = 1  
The ratio 72 : 8 can be reduced to lowest terms by dividing both terms by the GCF = 8 :  
72 : 8 = 9 : 1  
Therefore:
72 : 8 = 9 : 1
 
        
             
        
        
        
Answer:
3200
Step-by-step explanation:
 
        
             
        
        
        
No you can divide 0.5 by 0.25 and you will get 2
        
                    
             
        
        
        
Answer:
x = 2
Step-by-step explanation:

 
        
             
        
        
        
Answer:
x = -0.2 and x = -3.5
Step-by-step explanation:
Combine like terms in the given equation, by subtracting 2x^2 from both sides:
 6x^2 + 15x + 3 = 2x^2
-2x^2                = -2x^2
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 4x^2 + 15x + 3 = 0
This is a quadratic equation.  We'll find the two solutions using the quadratic equation
       -b ± √(b^2 - 4ac)
x = ---------------------------
                   2a
Here the coefficients of the quadratic are a = 4, b = 15 and c = 3.
Thus, the discriminant b^2 - 4ac is 15^2 - 4(4)(3), or +177
and from that we know we'll find two real, unequal roots.
                                 -15 ± √177
The roots are:  x = ------------------- , or x = -0.2 and x = -3.5
                                          8