I keep on dividing 8 by pi (3.14) and wont get the right answer.Oh and then round to the tenth place!
2007-01-16 14:00:19 · 15 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
If you want an answer which is accurate to 10 places, you'll have to use a more accurate form of pi than 3.14.
Yes, the diameter is 8/pi.
pi = 3.14159265358979...
8/pi = 2.5464790895 to 10 places
2007-01-16 14:06:53 · answer #1 · answered by Mark P 5 · 0⤊ 1⤋
Circumference = pi X diameter The closest value of pi is 22/7
8 = 22/7 X d = 8÷22/7 d = 8 X 7 ÷ 22 d = 56/22 = 2 12/22
d = 2 6/11 = 2.54545454...
If you mean "round it off to the tenths place," 2.5 is the answer.
If you mean "round it off to the tenth place," 2.5454545455 is it.
By working with fractions and dividing as the last step, your answer will be more exact.
2007-01-16 14:18:40 · answer #2 · answered by Marv 2 · 0⤊ 2⤋
Use 22/7 for pi. Divide 8/1 by 22/7. That = 8/1x7/22=2.6 (rounded to the nearest 10th).8/3.14= 2.5 (Rounded to the nearest tenth). Close enough.
2007-01-16 14:26:54 · answer #3 · answered by Max 6 · 0⤊ 1⤋
in case you place the discs in prevalent rows 11 x 7 is your answer (seventy seven) evaluate the situation yet in a various way by utilising putting 7 on your 1st row & 6 in the subsequent installation greater snugly!! Or 11 & 10 working from the longer ingredient the two considered one of those instruments replace & might supply you a bigger quantity !! by utilising drawing this out i'm getting 5 rows of (7 + 6) = sixty 5 & (4 rows of 11 + 3 rows of 10) = seventy 4 ~~ each of those leaves some area in the rectangle & neither are as vast by way of fact the seventy seven curiously have yo cosidered a similar situation utilising ball bearings of an identical length right into a field A x B x C??
2016-12-16 06:28:06 · answer #4 · answered by ? 4 · 0⤊ 0⤋
yep, ur right. since circumfrence equals diameter times pi (3.14), u wud divide the sircumfrence by pi to get the diamter. chances are u might get this huge decimal of an answer. if u round it to the tenths or hundreths place, it'll look alot better. :)
2007-01-16 14:04:17 · answer #5 · answered by Anonymous · 0⤊ 1⤋
Circumference = pi*diameter
Fill in the blanks.
8 = pi*diameter
8/pi = diameter
Then round it to the 10th decimal place....
diameter = 2.5464790895
2007-01-16 14:07:25 · answer #6 · answered by Wolfshadow 3 · 0⤊ 1⤋
2.54545454545454545454545454545454545 to infinity decimals
which is 8 X 7/22 (1/pi)
2007-01-16 14:06:42 · answer #7 · answered by Kool-kat 4 · 0⤊ 2⤋
Circumerence: C
Diameter: D
C = pi*D
8 = pi*D
D = 8/pi ~ 8/3.14 = your answer
2007-01-16 14:17:28 · answer #8 · answered by Razor 2 · 0⤊ 1⤋
8/pi = 2.55
that's correct!
8/pi = diameter
2007-01-16 14:06:11 · answer #9 · answered by Derek S 2 · 0⤊ 2⤋
You're doing the right thing. What's the right answer supposed to be?
C = πd, so
d = C/π = 8/π = 2.546479
2007-01-16 14:02:49 · answer #10 · answered by Jim Burnell 6 · 0⤊ 1⤋