Answer:
3 hours and 20 minutes
Step-by-step explanation:
Jack's rate is 1 puzzle for every 5 hours, so his rate per hour is 1/5 of a puzzle per hour.
We need to find the rate of his brother so here is our equation,
1/5 + 1/x = 1/2
1/2 - 1/5 =1/x
3/10 = 1/x
3/ 3x = 3/10
3x=10
x= 3 and 1/3 hours
3 hours and 20 minutes
 
        
             
        
        
        
Answer:
20 inches
Step-by-step explanation:
1/4 ==> 1
20 fourths in 5
4 ==> 20
 
        
             
        
        
        
There are 16 ounces in a pound. If there are 4 pounds, then you take 16 and multiply it by 4 and then add 6.
The answer is: 70.
        
                    
             
        
        
        
Answer: No solution
Step-by-step explanation:
 
        
                    
             
        
        
        
9514 1404 393
Answer:
   none
Step-by-step explanation:
No work is required to maintain an object at a constant speed with no change in direction. Work is only done when an object is accelerated, or moved some distance in the direction of the net force applied.
you would do no work