What is wrong with this road sign: Memphis 7 mi (11.263

Chapter 20, Problem 4Q

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QUESTION:

What is wrong with this road sign:

         Memphis 7 mi (11.263 km)?

Questions & Answers

QUESTION:

What is wrong with this road sign:

         Memphis 7 mi (11.263 km)?

ANSWER:

Step 1 of 2

The problems with the road sign is:

       1)  It is not correct to express the term with its significant figures as mentioned in the sign.

The metric system of length is expressed with 3 significant figures which is wrong.

(In addition 7miles = 11.27 km)

The correct sign should be

BOSTON 7mi (11km)

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