## ela099 3 years ago it takes 5 hrs for 6 cooks to prepare food , how long will it take 7 cooks to prepare food?

1. GregTheo

this is a proportion. 5/6 = x/7 x= 35/6

2. ela099

How much is 35/6 in hours ?

3. GregTheo

5.83333333333 Hrs

4. GregTheo

or 5 hours and 50 min

5. ela099

Thanks

6. Hero

So it's going to take more time for seven cooks?

7. Hero

It only took five hours for six cooks, but it's going to take almost 6 hours for seven cooks? How does that make sense?

8. Hero

@GregTheo

9. GregTheo

10. ela099

\$5400 is invested. at 11% and 7%. whats 11% of 5400? whats 7% of 5400?

11. Hero

12. ela099

oh, um ... idk

13. GregTheo

5 hrs at 6 cooks is 30 cook hours. if 7 cooks work then 30/7 is the number of hours

14. KNicksfan4life

OK So this can be a little difficult to understand -- so let's show it this way: If 6 cooks do it on 5 hours, how long would it take 1 cook? 5 hours = time for one cook / 6 cooks 30 = time for one cook So if it takes 1 cook 30 hours, how long would it take 8 cooks: 30 hours for 1 cook / 8 cooks = 3.75 hours or 3 hours and 45 minutes. Hope this explanation is helpful.

15. niravshah08

I think its inverse variation, since if you have more cooks it takes less time. 5 = k/6 k = 30 x = 30/7 = 4.28

16. Hero

^ What @niravshah08 said

17. niravshah08

@KNicksfan4life you copy pasted it wrong :P

18. ela099

So r all of you guys hella smart in math???

19. niravshah08

you answer will be 4 hrs 17 mins

20. niravshah08

21. KNicksfan4life

594

22. KNicksfan4life

ok?

23. ela099

Yes, Thanks