Basic Math Concepts: For Water and Wastewater Plant OperatorsFROM THE PREFACE In the years since the first edition, I have continued to consider ways in which the texts could be improved. In this regard, I researched several topics including how people learn (learning styles, etc.), how the brain functions in storing and retrieving information, and the fundamentals of memory systems. Many of the changes incorporated in this second edition are a result of this research. The changes were field-tested during a three-year period in which I taught a water and wastewater mathematics course for Palomar Community College, San Marcos, California. This first volume, ""Basic Math Concepts for Water and Wastewater Plant Operators,"" provides a thorough review of the necessary mathematical concepts and skills encountered in the daily operations of a water and wastewater treatment plant. Each chapter begins with a skills check to allow the student to determine whether or not a review of the topic is needed. Practice problems illustrate the concepts presented in each section. |
Contents
Solving for the Unknown Value | vii |
Decimals | lxxxii |
Averages | cxxvii |
Ratios and Proportions | cxlv |
Cu ft to lbs conversions | clxxviii |
Linear measurement conversions | 1 |
Volume measurement conversions | 10 |
mgL to gpg conversions | 20 |
Metric conversions metric to metric | 21 |
Linear Measurement | 9 |
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3rd Dim adding or subtracting answer applied math texts arithmetic mean bar graph box diagram box method circumference Complete the following concept cone conversion equation cross multiplication cubic feet cylinder decimal fraction decimal number decimal point move determine diameter dimensional analysis divide equal equivalent fractions factors Find the LCD following numbers ft Example gallons given improper fraction indicates a review larger box lateral area length line graph logarithmic scale lowest terms metric system mg/L mixed number move the decimal moving average multiply nomograph numerator and denominator percent perimeter place value move power of ten Proportion Problem Reading Scales rectangle Reduce fractions refer to Chapter rounding scientific notation section is advisable shown in Example side significant figures smaller box sq ft square root Step SUMMARY tank tick marks trapezoid Types of Graphs units unknown value volume wastewater calculations water and wastewater whole number zeros