Shawn and ellie are construction workers. shawn can complete a concrete job in 4 hours, while ellie can complete it in 6 hours. the foreman says that it will take them 5 hours to complete it if they work together. explain each step in solving this equation, and determine if the foreman is correct or not.

shawn does 1 job in 6 hours

 turn that into a fraction 1/6

Ellie 1 in 4 so fraction is 1/4

1/6 + 1/4 = 5/12

12/5 = 2.4

 it will take them 2.4 hours

(-1,-0.5)

step-by-step explanation:

10/60

step-by-step explanation:

if you divide 10 by 60 the answer is 0.166666 while if you divide or solve the other problems it equals 0.6