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How long does it take Seth to race 1 mile? Write the constant rate of change in miles per second. Round to nearest hundredth.

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applesausey
1 hour = 60 minutes = (60 minutes)(60 seconds/minute)  = 3600 seconds
1 mi./57.1 sec. = (1 mi./ 57.1 sec.)(3600 sec./1 hour)
= (3600/57.1) mi./hr.

the answer is: 63.047 mi./hr.

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