ameryn.love17
A street that is 156m long is covered in snow. City workers are using a snowplow to clear the street. A tire on the snowplow has to turn 39 times in traveling the length of the street. What is the diameter of the tire?
Use the value 3.14 for Pi . Round your answer to the nearest tenth. Do not round any intermediate steps.
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saifoo.khan
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156/39
bahrom7893
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wrong
saifoo.khan
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That will give you it's circumfrence.
bahrom7893
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correct
madscientist101
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around 13?
madscientist101
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I lied...
ameryn.love17
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i got 4
saifoo.khan
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Then,
use the formula,
Cirmufrence = pi * d
Where d is the diameter.
saifoo.khan
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4/3.142 = d
madscientist101
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nvm I didn't... 12.4
madscientist101
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^ close enough to 13
ameryn.love17
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12.4 is the answer??
Dockworker
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damn...12m tires, that's one monster plow :)
Dockworker
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no
ameryn.love17
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ok now im confused
Dockworker
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you have the circumference of the tire as 156/39=4
C=pi*d
d=C/pi
where d is diameter, C is circumerference, as khan said
saifoo.khan
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It's 4. like i said.
4m is the circumfrence.
saifoo.khan
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|dw:1330132604185:dw|
ameryn.love17
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oooh a cookie.....lol jk jk
saifoo.khan
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Lmao. That's a Tyre. of 4m.
albertrea
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ameryn, you are lovely, sehr schoon!
ameryn.love17
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oh ahhah thanks
Chlorophyll
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156 = 39 * ( pi * D)
->D = 156/ 39 pi = 1.27m