Answer:
45
Step-by-step explanation:
This is the answer because:
1) 43 + 2 equals to 45
Hope this helps! 
 
        
             
        
        
        
Answer: it will take them 28 minutes to fill the tank.
Step-by-step explanation:
The first pipe alone can fill the tank in 84 minutes. This means that the rate at which the first pipe fills the tank per minute is 1/84
The second pipe can fill the tank in 42 minutes by itself. This means that the rate at which the second pipe fills the tank per minute is 1/42
If they work together, they would work simultaneously and their individual rates are additive. This means that their combined rate of filling the tank would be 
1/84 + 1/42 
Assuming it takes t hours for both pipes to fill the tank working together, the working rate per minute would be 1/t. Therefore,
1/84 + 1/42 = 1/t
3/84 = 1/t
t = 84/3
t = 28 minutes
 
        
                    
             
        
        
        
Answer: ¹/₁₂ watermelon
Step-by-step explanation:
Mrs. Parker had a watermelon which she cut into fourths and then gave one of those pieces to her children. 
This means that she gave them 1/4 of a watermelon. 
There are 3 children and they are to share this piece equally:
= 1/4 ÷ 3
= 1/4 * 1/3
= 1/12
<em>Each child will get 1/12 of the water melon. </em>
 
        
             
        
        
        
It is given in the question that the end of a pendulum with a length of 21 cm travels an arc length of 24 cm. 
So here radius is 21 cm and the arc length is 24 cm .
Now we use the arc length formula , which is

Where s is the arc length and r is the radius.
Substituting these values, we will get

And now we need to convert radian to degree, and for that we have to multiply by 
That is 

 
        
             
        
        
        
Robyn bakes 4 pies because if she has 8 total cups of flour and each pie needs 2 cups of flour then all you need to do its divide. Hope this made sense and helped.