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November 24th, 2006

$Frank Schaffer Math Game Activity Cards Illustrated by Jean T Van Derford$
Frank Schaffer Math Game Activity Cards Illustrated by Jean T Van Derford
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$File Folder Game MATH Beginning FRACTIONS HOMESCHOOL$
File Folder Game MATH Beginning FRACTIONS HOMESCHOOL
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$File Folder Game MATH Homeschool Addition Pumpkin Pies Sums 7 16$
File Folder Game MATH Homeschool Addition Pumpkin Pies Sums 7 16
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$File Folder Game Literacy Center MATH Homeschool UPPER SUBTRACTION FACTS$
File Folder Game Literacy Center MATH Homeschool UPPER SUBTRACTION FACTS
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$math games zone$
Question: Math Question HELP (please)?

During the 100 meter dash in 1988 Olympic Games in Seoul, Korea, Florence Griffin Joyner was timed at 0.91 seconds for 10 meters.
At this Speed, could she pass a car traveling 15 miles per hour in a school zone?

HINT: You must use conversion between units of measure to answer this question.

Try to SHOW all STEPS

Answer: 10 meters in .91 sec = 10 / .91 meters/second = 10.989 m/sec
1 m = 3.28 feet, so that's
10.989 * 3.28 = 36 ft/sec

1 mi = 5280 ft, 1 hr = 60 min, 1 min = 60 sec, so doing all the conversions at once:

15 mi/hr = 15 * 5280 feet / 3600 seconds ( 1 hr = 60 min * 60 sec) = 22 ft/sec

So, YES, she IS going faster than the car.

Multiplication Memory