Question

Help.. I need details to help me understand.

Answer 1

substitute 37.7 meters instead of C. What do you get?

Answer 2

\[\frac{ c }{ 2\pi } = r\] where C is your circumference

Answer 3

I'm confused

Answer 4

start with C = 2πr

replace "C" with 37.7

Answer 5

37.7 = 2πr

now solve for r

Answer 6

i dont know how to do this

Answer 7

divide both sides by 2π

Answer 8

... how do you divide that the π confuses me

Answer 9

π is just a number, it's equal to about 3.14

Answer 10

you know how to divide 37.7 by 2, right? you also know how to divide 37.7 by 3.14, right? just do both at the same time

Answer 11

18.85? & I'm unsure how to divide the second one ?

Answer 12

18.85/3.14 = ?

(use a calculator)

Answer 13

\[\frac{ 37.7 }{ 6.2831 }\]

Answer 14

it gives me a big number

Answer 15

I'm clearly horrible at math

Answer 16

\[\frac{ 37.7 }{ 2*3.14.159 }\]

Answer 17

err seems I added 1 to many . there... but that will give you your r value

Answer 18

enter "37.7", then press the divide button, then enter "6.2831", then press the enterbutton/equal sign

Answer 19

it should be #.xxxxxxxxx but you can ignore the xxxxxxx part as they are mostly 0

Answer 20

or just use an online calculator

https://www.bing.com/search?q=37.7%2F6.2831&PC=U316&FORM=CHROMN

Answer 21

6.0002228199455698 ?

Answer 22

yes

Answer 23

good! that s the radius

Answer 24

but 6 will do

Answer 25

okay? still kind of lost

Answer 26

you're done, you just found that the radius is equal to 6

Answer 27

I'm just a little confused how we got there lol

Answer 28

the formula you were given was C = 2πr

Answer 29

using algebra we moved our variables around to solve for r since C was given.
We divided 2π from both sides like so C/2π = 2πr/2π the 2π on the side of 2πr cancelled leaving us with C/2π = r and from there you just plugged in values C = 37.7 and 2*(3.1415) which is the value of π

Answer 30

hope that helps :)

Answer 31

i think i'm dumb cause i dont get it lol