AnswersELPGEQ2 MJ Math 6 - 1205010 HCPS v24Ordering Rational NumbersQuestion 7
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Ordering Rational Numbers

Question 7 • ELPGEQ2 M/J Math 6 - 1205010 HCPS v24

The average rainfall in Phoenix is 8.29 inches per year. The table shows recent data on the difference in annual rainfall from the average.Phoenix Annual Total RainfallYearRainfall compared to average yearly rainfall2008+6.57 inches2009–2.68 inches2010+12.26 inches2011–4.38 inches2012–4.46 inchesWhich list represents the years from driest to wettest?

Answer
A
2010, 2008, 2009, 2011, 2012
B
2011, 2012, 2009, 2008, 2010
C
2012, 2011, 2009, 2008, 2010
D
2009, 2011, 2012, 2008, 2010

Explanation

To order the years from driest to wettest, compare their rainfall differences from the average from smallest to largest. The values are −4.46 inches (2012), −4.38 inches (2011), −2.68 inches (2009), +6.57 inches (2008), and +12.26 inches (2010), so the correct list is 2012, 2011, 2009, 2008, 2010.

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