A circular jogging track is being designed so that one complete lap around the track is one mile long. What should the radius of the track be to the nearest foot?
(one mile equals five thousand two hundred eighty feet)
two thousand six hundred forty feet
one thousand seven hundred sixty feet
one thousand six hundred eighty-two feet
eight hundred forty-one feet
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OpenStudy (anonymous):
i need help asap
OpenStudy (anonymous):
i need help asap
OpenStudy (ashleyisakitty):
r=(C/2*pi)
r=[5280/(2*3.14)]
r= ?
OpenStudy (anonymous):
wut
OpenStudy (anonymous):
can you tell me the answer
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OpenStudy (ashleyisakitty):
What does the last equation equal to?
OpenStudy (anonymous):
i get you a medal if you answer it
OpenStudy (ashleyisakitty):
I did.
OpenStudy (ashleyisakitty):
ill give you a medal if you use your brain
OpenStudy (anonymous):
tell me it
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OpenStudy (anonymous):
mean
OpenStudy (ashleyisakitty):
[5280/(2*3.14)] equals what
OpenStudy (anonymous):
two thousand six hundred forty feet
OpenStudy (ashleyisakitty):
uh, no.
OpenStudy (ashleyisakitty):
do you know of those magical things called calculators?
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OpenStudy (anonymous):
oh let me try agan
OpenStudy (anonymous):
yeah
OpenStudy (anonymous):
im 12
OpenStudy (ashleyisakitty):
your age doesnt give you an excuse for not using common sense
OpenStudy (anonymous):
YES i know
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OpenStudy (anonymous):
is it 2 times 3 times 14
OpenStudy (ashleyisakitty):
3.14 is pi
OpenStudy (ashleyisakitty):
so its 2 x 3.14
OpenStudy (anonymous):
so you 2x3
OpenStudy (anonymous):
=6
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OpenStudy (ashleyisakitty):
no, 2 * 3.14, do it exactly.
OpenStudy (anonymous):
whhat does * mean
OpenStudy (ashleyisakitty):
Its multiplication. Multiply 2 by 3.14 exactly, not just 2 by 3.
OpenStudy (anonymous):
can you just expplann it be working it out beacuse i do not get it
OpenStudy (ashleyisakitty):
Do you not know basic multiplication, sweetheart? its just 2 by 3.14.
3.14
2
_____
6.28
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OpenStudy (anonymous):
I DO
OpenStudy (ashleyisakitty):
Now that you have that, divide 6.28 into 5280.
OpenStudy (anonymous):
and when i get that will it be my answer
OpenStudy (ashleyisakitty):
what do you get when you divide it?
OpenStudy (anonymous):
840
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