SOLUTION: 1. If it takes 5 hours to travel 250 miles, how long will it take to travel 900 miles? 2. It took Carol 5 hours to drive 200 miles to friends house and 7 hours to make trip bac

Algebra ->  Customizable Word Problem Solvers  -> Travel -> SOLUTION: 1. If it takes 5 hours to travel 250 miles, how long will it take to travel 900 miles? 2. It took Carol 5 hours to drive 200 miles to friends house and 7 hours to make trip bac      Log On

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Question 556162: 1. If it takes 5 hours to travel 250 miles, how long will it take to travel 900 miles?
2. It took Carol 5 hours to drive 200 miles to friends house and 7 hours to make trip back home, how many total miles did she drive?
3. It took Carol 5 hours to drive 200 miles to friends house and 7 hours to make trip back home, what was her average speed for the entire trip?
4. Dave runs 5 miles in 22 minutes, when he runs with his friend they run an average speed of 6.5 miles per hour, how many miles did they run in 30 minutes.
5. George ran 2.5 miles in 19 minutes. Paul ran 10 miles in 60 minutes. Kevin ran 3.1 miles in 24 minutes. Who had the fastest speed?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
(1)
Rate is +250%2F5+=+50+ mi/hr
+d+=+r%2At+
+900+=+50t+
+t+=+18+ hrs
(2)
She makes 2 trips of +200+ mi each
+200%2A2+=+400+ mi
(3)
Average speed = ( total miles ) / ( total time )
+400%2F12+=+33.333+ mi/hr
(4)
Not sure about this
(5)
George:
+2.5%2F19+=+.1316+ mi/min
Paul:
+10%2F60+=+.1667+ mi/min
Kevin:
+3.1%2F24+=+.1292+ mi/min
The fastest is Paul