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Mathematics 8 Online
OpenStudy (anonymous):

The formula r=2sqrt 5L can be used to approximate the speed r, in miles per hour, of a car that has left skid marks of length L, in feel. How far will the car skid at 20 mph?

OpenStudy (anonymous):

20=2sqrt5L Now solve for L

OpenStudy (anonymous):

L should be 20 miles

OpenStudy (anonymous):

so 5*20 which =100? so 100 ft?

OpenStudy (anonymous):

Yeap!

OpenStudy (anonymous):

sweet! Thanks :)

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