F = 15%
v = 5%
0.15f + 0.05v = 0.14*10
15f + 5v = 140
3f + v = 28
f + v = 10 (total volume)
---------- Subtract
2f = 18
f = 9 liters of 15%
v = 1 liter of 5%
        
             
        
        
        
Step-by-step explanation:
4x -20 + 3x +12 = 90
7x -8 = 90
7x = 98 
x = 14
Angle F: 4(14) -20 = 36
Angle E: 3(14)+12= 54
Angle G : 90
 
        
             
        
        
        
Answer:
a total of 24 presents can be wrapped
Step-by-step explanation:
6 x 3 = 18 feet of ribbon
18 x 12 = 216 inches of ribbon
216/9 = 24 presents can be wrapped
 
        
             
        
        
        
I think the answer is 3 but I’m not sure.
Hope this helps!
 
        
             
        
        
        
So, and, but, but, or, nor, so. Im pretty sure this is correct.