Paul, jeff, and jerry worked together repairing paul's car. jeff worked twice as many hours as jerry, and paul worked six hours more then jeff. altogether, they worked 51 hours. how many hours did paul work?

 24 hours

Step-by-step explanation:

Let x represent the number of hours that Jerry worked, then:

Jerry: x

Jeff: 2x

Paul: 2x + 6

Jerry  +  Jeff   +  Paul   = Total

  x     +   2x    + 2x + 6  =  51

                         5x + 6  =  51

                          5x       =  45

                            x       =   9

Jerry: x  -->  9

Jeff: 2x  --> 2(9) = 18

Paul: 2x + 6  --> 2(9) + 6 = 24

the answer is here: : )

:

7. d. 64

8. i. 32

9. c. 125

10. j. none of the above

11. d. 81

12. i. 216

13. e. none of the above

14. g. 240

15. e. none of the above

16. g. 32

17.   e. none of the above