## michellemater 2 years ago 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

1. michellemater

i need help asap

2. michellemater

i need help asap

3. Ashleyisakitty

r=(C/2*pi) r=[5280/(2*3.14)] r= ?

4. michellemater

wut

5. michellemater

can you tell me the answer

6. Ashleyisakitty

What does the last equation equal to?

7. michellemater

i get you a medal if you answer it

8. Ashleyisakitty

I did.

9. Ashleyisakitty

ill give you a medal if you use your brain

10. michellemater

tell me it

11. michellemater

mean

12. Ashleyisakitty

[5280/(2*3.14)] equals what

13. michellemater

two thousand six hundred forty feet

14. Ashleyisakitty

uh, no.

15. Ashleyisakitty

do you know of those magical things called calculators?

16. michellemater

oh let me try agan

17. michellemater

yeah

18. michellemater

im 12

19. Ashleyisakitty

your age doesnt give you an excuse for not using common sense

20. michellemater

YES i know

21. michellemater

is it 2 times 3 times 14

22. Ashleyisakitty

3.14 is pi

23. Ashleyisakitty

so its 2 x 3.14

24. michellemater

so you 2x3

25. michellemater

=6

26. Ashleyisakitty

no, 2 * 3.14, do it exactly.

27. michellemater

whhat does * mean

28. Ashleyisakitty

Its multiplication. Multiply 2 by 3.14 exactly, not just 2 by 3.

29. michellemater

can you just expplann it be working it out beacuse i do not get it

30. Ashleyisakitty

Do you not know basic multiplication, sweetheart? its just 2 by 3.14. 3.14 2 _____ 6.28

31. michellemater

I DO

32. Ashleyisakitty

Now that you have that, divide 6.28 into 5280.

33. michellemater

and when i get that will it be my answer

34. Ashleyisakitty

what do you get when you divide it?

35. michellemater

840

36. Ashleyisakitty

37. michellemater

thank you sooo much

38. Ashleyisakitty

yerr welcome