Answer:
3.5
Step-by-step explanation:
Because if .5 turns into one whole if you add .5 then its a half and so when you put the .5 into a fraction so thats the answer.
 
        
                    
             
        
        
        
Answer:
total animal 40
number of bears are 40×3/8=15
number of dogs will be 40 - 15 = 35
Step-by-step explanation:
hope it helped u buddy 
 
        
             
        
        
        
(2+2):2x4:16-10x2:2x3=x
4:2x4+16-10x1x3=x
8+16-30=x
-6=x
x=-6
This signing : signifícate division 
I help the my answer can help you
        
             
        
        
        
If the ratio is 5:7 then the each part has a value of:
60/(5+7)=5 so from a total of 60
5:7 becomes 5*5:7*5 which is:
25:35
        
             
        
        
        
Answer:2.4
Step-by-step explanation: 
12 * 20% = 12 * 0.20 = 2.4 hours
It will not last the entire shift.