Question

t takes about 14 person-hours of labor to break up a driveway and clear away the rubble. It takes about 8 person-hours of labor to pour and smooth concrete for the new driveway. About how many person-hours of labor does it take to break up a driveway, clear away the rubble, pour the concrete, and smooth the concrete?  6

Answer 1

For this case what you must do is add the number of hours to perform the different activities.
 We have then:
 14 person-hours of labor to break up to driveway and clear away the rubble.
 8 person-hours of labor to pour and smooth concrete for the new driveway.
 Adding both activities we have
 14 + 8 = 22
 answer
 it takes to break up to driveway, clear away the rubble, pour the concrete, and smooth the concrete about 22 person-hours of labor

Answer 2

Answer:

22 person-hours of labor

Step-by-step explanation:

From the example given, we recall the following statement

Let  the number of person-hours of labor to break up a  driveway and clear away the rubble = be 14

Let the  number of  person-hours of labor to pour and smooth concrete for the new driveway be = 8

We can then sum up both of the activities, which is,

14 + 8 = 22,

Therefore,

To break up a driveway, clear away the rubble, pour the concrete, and smooth the concrete, it will take 22 number of  person-hours of labor to achieve that.