I think it’s 6,9,16 for the answer
        
             
        
        
        
Answer:
The probability that it will weigh more than 904 grams = 0.9452
Step-by-step explanation:
Given - 
Mean  = 920 grams
 = 920 grams
Standard deviation  =10
 =10
Let X be the weight of a certain brand of adult cereal
if we select one box of cereal at random from this population
The probability that it will weigh more than 904 grams = 
 =
 = 
                    =  Putting
    Putting 
                    =  Using Z table
  Using Z table
                    = 1 - .0548
                    = 0.9452
 
        
             
        
        
        
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.