One crew can seal a parking lot in 6 hours and another in 8 hours. How long will it take to seal the parking lot if the two crews work together?

2 hours

Step-by-step explanation:

Given that the slow crew does the job in x/8 hours and fast in x/6

Equation:

x/6 + x/8 = 1 <1 because there is one job to be done

8x + 6x = 48

24x = 48

x = 2

It will take both groups working together 2 hours

answer: 4 meters

step-by-step explanation: to you understand 2/3 better you can do 1 divided by 3 = . then multiply that by the 2 which is .66666666666666667 then you would do 6 x .66666666666666667 which is 4.      

hope this .