Basic College Mathematics (9th Edition)

Published by Pearson
ISBN 10: 0321825535
ISBN 13: 978-0-32182-553-7

Chapter 7 - Measurement - 7.5 Metric - U.S. Measurement Conversions and Temperature - 7.5 Exercises: 19

Answer

1.3 cm (rounded)

Work Step by Step

Given, the smallest pet fish are dwarf gobies, which are half an inch long. To find the length of dwarf gobie in centimeters, to the nearest tenth 1/2 in = 0.5 in We’re changing from a U.S. length unit to a metric length unit. In the “U.S. to Metric Units” side of the table, you see that 1 inch = 2.54 centimeters. Two unit fractions can be written using that information.(1 inch)/(2.54 cm) Or(2.54 cm)/(1 inch). Multiply by the unit fraction that allows you to divide out inch (that is, inch is in the denominator). 0.5 in * (2.54 cm)/(1 inch) = 1.27 cm = 1.3 cm (rounded)
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