Answer:
Step-by-step explanation:
tany+coty =
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Answer:

Step-by-step explanation:
Let the numbers be x , y
Sum of two numers = -7
x + y = -7------------(I)
Two times the first number equals 4 the second number.
2x = 4y  ----------(II)
Divide both sides by 2
        
         x = 2y
Subtitute x = 2y in equation (I)
2y + y = -7
       3y = -7
        y = -7/3
Plugin y = -7/3 in equation (II)

 
        
             
        
        
        
Answer:
the mixed number is 2 1/4 and improper fraction is 9/4