Round 34.678 to the nearest tenth.

General rule so exg
round 14 to the nearest 10, the answer is 19 becuase 4>5 so round down
if 15 then round to nearest 10=20 because 5>5

so tenth digit is the 6
look at the next digit
7
7>5 so round up
34.7

To the nearst 10th is 34.7
(the first position after the decimal is the tenth place and) next to the 6 is 7 which is greater than 5 so the 6 turn into 7 when you round up so your answer will end up being 34.7 .

Best answer that i found on yahoo ok   set :   x= length of 2nd piece in cm  x- 3= length of 1st piece in cm  x-4= length of 3rd piece in cm  then since you know they all came from the 20 cm ribbon you add them together and set them equal to 20x+ x-3 +x-4 = 20  3x - 7= 20  3x= 27  x= 9  the shortest piece is the third piece which is x- 4  x-4  9-4 = 5  the length of the smallest piece is 5 cm.  the other lengths are  9 cm  6 cm