## iloveboys Group Title Rose worked the following problem incorrectly. Part 1) In which line was the mistake made? Part 2) Show your work and give the correct answer? Line 1 30 ÷ 5(3 - 1) - 4 Line 2 30 ÷ 5(2) - 4 Line 3 30 ÷ 10 - 4 Line 4 3 - 4 Line 5 -1 2 years ago 2 years ago

1. iloveboys

I think all of them are right

2. TuringTest

me too, but the notation is a little vague

3. iloveboys

Than why would my teacher even ask?

4. TuringTest

is the original question${30\over5(3-1)}-4$? or is it just as you printed it?

5. iloveboys

Its just as i put it

6. TuringTest

it could be${30\over5}(3-1)-4$if the notation is unclear

7. TuringTest

well, if the division symbol is as you have it, then I say no mistakes are made and I cannot read your teacher's mind. Anybody see a problem with my observation?

8. across

I don't.

9. TuringTest

if there is a mistake it would be that Line 1 30 ÷ 5(3 - 1) - 4 Line 2 30 ÷ 5(2) - 4 should lead to 60÷5-4 but that seems extraneous... I'm gonna say no mistakes.

10. TuringTest

lame division symbol notation, far too vague :P

11. iloveboys

I found out what it was.

12. TuringTest

13. iloveboys

Its line 3.. I have to use PEMDAS to do this problem..

14. iloveboys

It should look like this when done correct

15. iloveboys

It would be line 3 because she or he forgot to divide 30 by 5 it should look like this. 30/5(3-2)-4 30/5(2)-4 5(2)-4 6

16. iloveboys

PEMDAS has to be done from left to right

17. TuringTest

30/5(3-2)-4 30/5(2)-4 does not lead to 5(2)-4 no matter how you slice it, so that makes no sense...

18. iloveboys

Its (3-1)

19. cwrw238

30/5(2)-4 = 6(2)-4 if your working strictly from lt to rt

20. TuringTest

you misprinted the problem as you just noticed 30/5(3-1)-4 30/5(2)-4 does not lead to 5(2)-4 no matter how you slice it, so that makes no sense...

21. iloveboys

22. iloveboys

its 30/5(3-1)-4 30/5(2)-4 5(2)-4 6

23. iloveboys

Imessed up

24. TuringTest

cwrw's interpretation is possible, but it means the original question is the second option I posted above. this is why the division symbol "÷" is ridiculously vague

25. TuringTest

your typo didn't matter, we all ignored it and knew what you meant

26. TuringTest

I guess go with cwrw's answer. again, bad question WAY too vague

27. cwrw238

i agree

28. iloveboys

It would be line 3 because she did not do it right.. she did 5(2) before she did 30/5 on line two witch makes line three incorrect and if she got line three incorrect everything below would be incorrect to. it should look like this. 30/5(3-1)-4 30/5(2)-4 6(2)-4 12-4 8

29. TuringTest

right! good job but please take note of what we are saying about how vague this question is.

30. iloveboys

Noo no no i agree with you

31. TuringTest

should be written as$\frac{30}{5}(3-1)-4$to get this answer...

32. iloveboys

I agree all the way