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You and a friend start biking in opposite directions from the same point. You travel 108 feet every 8 seconds. Your friend travels 63 feet every 6 seconds.
To the nearest hundredth of a mile, how far apart are you and your friend after 15 minutes?

Respuesta :

63= 60 then... 60/6 = 10
108=100 then... 100/ 8= 12. 5 
60 sec in 1 min so ...
12.5 * 6 =  75
10*6= 60 
75 - 60= 15 feet apart.

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