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Noteables Interactive Study Notebook (26491.0K) - McGraw-Hill ...

Noteables Interactive Study Notebook (26491.0K) - McGraw-Hill ...

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3–10 Problem-Solving Investigation:Reasonable AnswersEXAMPLE Determine a Reasonable AnswerMAIN IDEA• Determine reasonableanswers to solveproblems.BIRDS The table below shows the wingspans of someNorth American birds of prey. What is the wingspan ofthe Peregrine falcon in feet?Birds of PreyWingspan (in.)Bald Eagle 54Peregrine Falcon 40Great Horned Owl 55Barn Owl 44UNDERSTAND You know the length in inches. You need to finda reasonable length in .PLAN 12 inches equals foot. So, estimate theHOMEWORKASSIGNMENTPage(s):Exercises:quotient of 40 and 12 to find a reasonablelength.SOLVE 40 ÷ 12 → ÷ orCHECKA reasonable length is .Since 40 ÷ 12 or 40 _12 = 10 _3 and 10 _3 = 3 1_3 ,the answer ofis reasonable.Check Your Progress FISH A sailfish can swim 68 milesper hour. Which is a more reasonable estimate for the numberof miles a sailfish could travel in 15 minutes: 17 or 25? Explainyour reasoning.Copyright © Glencoe/<strong>McGraw</strong>-<strong>Hill</strong>, a division of The <strong>McGraw</strong>-<strong>Hill</strong> Companies, Inc.78 Math Connects, Course 1

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