Answer:
Step-by-step explanation:
Please Upload clear image
 
        
             
        
        
        
No because 
36 / 9 = 4
20 / 4 = 5 
So they are multiplied by different amounts so they aren’t equivalent
        
                    
             
        
        
        
Answer:
After 15 minutes, the temperature of both the furnaces will be same.
Step-by-step explanation:
Let  be the minutes when the temperature of both becomes same.
 be the minutes when the temperature of both becomes same.
Now, as per question:
Temperature of the furnace after  minutes that is cooling at the rate of 15 degree per minute is given as:
 minutes that is cooling at the rate of 15 degree per minute is given as:

Temperature of the furnace after  minutes that is heating at the rate of 5 degree per minute is given as:
 minutes that is heating at the rate of 5 degree per minute is given as:

Now, equating both the temperatures, we get

Therefore, after 15 minutes, the temperature of both the furnaces will be same.
 
        
             
        
        
        
Answer:
5/18
Step-by-step explanation:
1/3 on monday
5/6 more
1/3 times 5/6