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A plane travels at 212 miles per hour
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A plane travels at 212 miles per hour

A plane travels at 212 miles per hour-example-1
User Darrah
by
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1 Answer

10 votes

Answer:

See below

Explanation:

212 mile/hr to 1 SD = 200 mile/hr

4000 sec/ hr / 200 mile/ hr = 20 sec / mile

OVER or UNDER ?

actual :

3600 / 212 = 16.98 sec / mile

so 20 sec / mile is an OVER ESTIMATE

User Harsh Nagarkar
by
3.4k points
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