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Mathematics 5 Online
OpenStudy (anonymous):

Jerry is traveling 475 miles to his mother's house. If his average speed is 62 miles per hour, which is a reasonable estimate of the amount of time the trip will take? A) between 5 and 6 hours B) between 6 and 7 hours C) between 7 and 8 hours D) between 8 and 9 hours

OpenStudy (anonymous):

@zepdrix

zepdrix (zepdrix):

What variables are you used to using for your Distance Formula? I'd like to use one that actually makes sense to you :D heh. d=rt d=st Any of those look familiar? :O

OpenStudy (anonymous):

what

zepdrix (zepdrix):

In this problem you're given a DISTANCE, 475 miles. and a RATE, 62 miles/hour. The way we relate distance and rate is which this formula,\[\large d=r\cdot t\]In this problem we're trying to solve for t, the amount of time it will take to travel the given distance. So we need the formula to be written like this,\[\large t=\frac{d}{r}\]And we were given,\[\large d=475 \; mi, \qquad r=62 \; mi/h\]

zepdrix (zepdrix):

Understand how to plug those values in? :D

OpenStudy (anonymous):

oh ok i think i got.it

OpenStudy (anonymous):

my answer is between 7 and 8

zepdrix (zepdrix):

Yay team \:D/

OpenStudy (anonymous):

yayay..cn i get a meal..ill medal yhu back

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