Answer: The time taken by both of them if they work together is given by

Step-by-step explanation:
Since we have given that
Time taken by Blake to paint one room = 9 hours
Time taken by Ned to paint one room = 6 hours
Work done by Blake = 
Work done by Ned = 
Total work done by both of them together is given by

So, the time taken by both of them if they work together is given by

C more than 5 as an algebraic expression c>5
Answer:
4
Step-by-step explanation:
because, if y = 4 and x = 1 then it would be 4/1 or 4 just simplify.
Y/X --- Y = 4 --- X = 1 ---- that makes 4/1 or 4