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# S to si conversion 1 in 2540 cm and the third is a

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Unformatted text preview: d map" is very helpful. A football field has a length of 100.0 yd. What is its length in meters? We know that 2.540 cm = 1 in. First we convert the yards to inches, then convert the inches to centimeters, and then the centimeters to meters. Our road map, or plan, is: yards → inches → centimeters → meters Each arrow requires a conversion factor. The first conversion is within the U.S. system: 1 yd = 36 in The second conversion is a U.S. to SI conversion (1 in = 2.540 cm), and the third is a conversion within the SI: 10–2 m = 1 cm Writing the problem in the form desired quantity = given quantity × conversion factors, we get: ? m = 100.0 yd Now we write the first unit factor with yards in the denominator so that the units of yards cancel: 3 6 in ? m = 100.0 yd × 1 yd Write the second unit factor with inches in the denominator so that the units of inches cancel, and units of cm are left: 3 6 in 2 .540 cm ? m = 100.0 yd × × 1 yd 1 in Back Forward Main Menu TOC Study Guide TOC Textbook Website MHHE Websit...
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