## anonymous one year ago Which number is one-fourth of the way between 2.2 and 8.5?

1. anonymous

@jim_thompson5910

2. anonymous

@zepdrix

3. anonymous

I believe its 3.775.

4. anonymous

Honestly just punch it in your calculator

5. jim_thompson5910

plot the two values on the number line |dw:1443240792986:dw|

6. jim_thompson5910

|dw:1443240818060:dw|

7. anonymous

6 something

8. jim_thompson5910

8.5 - 2.2 = ??

9. anonymous

...6.3

10. anonymous

6.3! I was getting to that Sohal haha

11. anonymous

12. jim_thompson5910

correct |dw:1443240965484:dw|

13. jim_thompson5910

then we take 1/4th of that distance 6.3/4 = ??

14. anonymous

sorry i will let u teach her hint punch in calculator :)

15. anonymous

3.775?

16. RagingSquirrel

Thanks for the detailed response, Sohal.

17. anonymous

Round to the nearest hundredth Just saying b4 i leave

18. jim_thompson5910

it's not 3.775

19. anonymous

wait let me check

20. anonymous

3.15?

21. jim_thompson5910

what calculator are you using?

22. RagingSquirrel
23. RagingSquirrel

Stop making guesses and punch a couple buttons.

24. anonymous

I am using no calculator..

25. anonymous

1.575 which would round to 1.58

26. jim_thompson5910

ok use this one http://web2.0calc.com/

27. anonymous

u should use one but its not that hard i could do it using long division

28. anonymous

USE long division and sorry if I sound mean I have no intention of sounding rude at all

29. Zarkon

Weighted mean $\frac{3\times 2.2+1\times 8.5}{4}$

30. anonymous

I don't think the correct way to find the answer is using the 6.3. All of the possible answers you are giving me are not options. Its just like your walking from point a to point b in this case its 2.2 and 8.5. What Point are you at when you stop one-fourth of the way? Could that work?

31. jim_thompson5910

that's exactly where my line of reasoning was heading Helpppmeee1999

32. anonymous

Oh good!

33. jim_thompson5910

take 1/4th of 6.3 then add that result to 2.2

34. anonymous

4.3 maybe? My math isn't very good.

35. jim_thompson5910

taking 1/4th of 6.3 is the same as dividing 6.3 over 4 when you used that calculator, what is the result of 6.3/4 ?

36. anonymous

1.575

37. anonymous

38. anonymous

39. jim_thompson5910

|dw:1443241666980:dw|

40. jim_thompson5910

yeah then you compute 2.2+1.575

41. anonymous

So it is 3.775?

42. RagingSquirrel

Yes

43. anonymous

.........

44. Zarkon

1/4 distance from a to b $a+\frac{b-a}{4}=\frac{4a}{4}+\frac{b-a}{4}=\frac{4a+b-a}{4}=\frac{3a+b}{4}$ so you can just use a weighted mean. $\frac{3\times2.2+8.5}{4}=3.775$

45. anonymous

Good planning Jim. Say that its incorrect, so I do all the work and get the answer myself. LOL

46. imqwerty

(:

47. jim_thompson5910

well I initially thought you said that 6.3/4 was equal to 3.775

48. anonymous

Oh no haha