Mathematics for the Trades: A Guided Approach (10th Edition) - Standalone book
Mathematics for the Trades: A Guided Approach (10th Edition) - Standalone book
10th Edition
ISBN: 9780133347777
Author: Robert A. Carman Emeritus, Hal M. Saunders
Publisher: PEARSON
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Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
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Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 …
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
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Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experime…
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Chapter 3.2, Problem 38EE

HVAC A homeowner in the Northeast recently spent $8600 to convert his heating system from heating oil to natural gas. His heating costs fell from $2360 last winter using oil to $960 this winter using gas. At this rate, based solely on winter heating cost savings, what is his payback time in years? (Round up to the next year.)

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Chapter 3 Solutions

Mathematics for the Trades: A Guided Approach (10th Edition) - Standalone book

Ch. 3.1 - Write in words. 0.72Ch. 3.1 - Write in words. 8.7Ch. 3.1 - Write in words. 12.36Ch. 3.1 - Prob. 4AECh. 3.1 - Write in words. 3.072Ch. 3.1 - Write in words. 14.091Ch. 3.1 - Write in words. 3.0024Ch. 3.1 - Write in words. 6.0083Ch. 3.1 - Prob. 9AECh. 3.1 - Write as a decimal number. Three and four tenths
Ch. 3.1 - Prob. 11AECh. 3.1 - Prob. 12AECh. 3.1 - Prob. 13AECh. 3.1 - Prob. 14AECh. 3.1 - Prob. 15AECh. 3.1 - Prob. 16AECh. 3.1 - Write as a decimal number. One hundred sixteen...Ch. 3.1 - Prob. 18AECh. 3.1 - Write as a decimal number. Two and three hundred...Ch. 3.1 - Write as a decimal number. Ten and two hundred...Ch. 3.1 - Add or subtract as shown. 14.21 + 6.8Ch. 3.1 - Prob. 2BECh. 3.1 - Add or subtract as shown. 2.83 + 12.19Ch. 3.1 - Add or subtract as shown. 52.37 + 98.74Ch. 3.1 - Add or subtract as shown. 0.687 + 0.93Ch. 3.1 - Prob. 6BECh. 3.1 - Add or subtract as shown. 507.18 + 321.42Ch. 3.1 - Prob. 8BECh. 3.1 - Add or subtract as shown. 45.6725 + 18.058Ch. 3.1 - Prob. 10BECh. 3.1 - Add or subtract as shown. 19 12.03Ch. 3.1 - Prob. 12BECh. 3.1 - Add or subtract as shown. 33.40 18.04Ch. 3.1 - Prob. 14BECh. 3.1 - Add or subtract as shown. 75.08 32.75Ch. 3.1 - Prob. 16BECh. 3.1 - Add or subtract as shown. 30 7.98Ch. 3.1 - Prob. 18BECh. 3.1 - Add or subtract as shown. 130 16.04Ch. 3.1 - Add or subtract as shown. 19 5.78Ch. 3.1 - Add or subtract as shown. 37 + 0.09 + 3.5 + 4.605Ch. 3.1 - Prob. 22BECh. 3.1 - Add or subtract as shown. 14.75 + 9 + 3.76Ch. 3.1 - Prob. 24BECh. 3.1 - Add or subtract as shown. 68.708 + 27.18Ch. 3.1 - Prob. 26BECh. 3.1 - Add or subtract as shown. 47.04 31.88Ch. 3.1 - Add or subtract as shown. 180.76 94.69Ch. 3.1 - Add or subtract as shown. 26.45 17.832Ch. 3.1 - Prob. 30BECh. 3.1 - Add or subtract as shown. 6.4 + 17.05 + 7.78Ch. 3.1 - Add or subtract as shown. 212.4 + 76 + 3.79Ch. 3.1 - Add or subtract as shown. 26.008 8.4Ch. 3.1 - Prob. 34BECh. 3.1 - Add or subtract as shown. 0.0046 + 0.073Ch. 3.1 - Add or subtract as shown. 0.038 + 0.00462Ch. 3.1 - Add or subtract as shown. 28.7 7.38 + 2.9Ch. 3.1 - Add or subtract as shown. 0.932 + 0.08 0.4Ch. 3.1 - Add or subtract as shown. 6.01 3.55 0.712Ch. 3.1 - Prob. 40BECh. 3.1 - Machine Trades What is the combined thickness of...Ch. 3.1 - Electrical Trades The combined weight of a spool...Ch. 3.1 - Electrical Trades The following are diameters of...Ch. 3.1 - Trades Management In estimating the cost of a job,...Ch. 3.1 - Metalworking Find A, B, and C.Ch. 3.1 - Plumbing A piece of pipe 8.4 in. long is cut from...Ch. 3.1 - Machine Trades A certain machine part is 2.345 in....Ch. 3.1 - Masonry Find the total cost of the materials for a...Ch. 3.1 - Masonry The specifications for a reinforced...Ch. 3.1 - Construction A plot plan of a building site showed...Ch. 3.1 - Automotive Trades A mechanic must estimate the...Ch. 3.1 - Automotive Trades A heated piston measures 8.586...Ch. 3.1 - Prob. 13CECh. 3.1 - Prob. 14CECh. 3.1 - Prob. 15CECh. 3.1 - Prob. 16CECh. 3.1 - Prob. 17CECh. 3.1 - Prob. 18CECh. 3.1 - Automotive Trades A technician renovating a truck...Ch. 3.1 - Prob. 20CECh. 3.1 - Automotive Trades An automotive technician is paid...Ch. 3.1 - Prob. 22CECh. 3.1 - Life Skills Balance this checkbook by finding the...Ch. 3.1 - Automotive Trades What is the actual cost of the...Ch. 3.1 - Add as shown. (a)...Ch. 3.2 - Multiply or divide as shown. 0.01 0.001Ch. 3.2 - Multiply or divide as shown. 10 2.15Ch. 3.2 - Multiply or divide as shown. 0.04 100Ch. 3.2 - Prob. 4AECh. 3.2 - Multiply or divide as shown. 0.7 1.2Ch. 3.2 - Prob. 6AECh. 3.2 - Multiply or divide as shown. 0.003 0.01Ch. 3.2 - Multiply or divide as shown. 7.25 0.301Ch. 3.2 - Prob. 9AECh. 3.2 - Prob. 10AECh. 3.2 - Multiply or divide as shown. 0.6 0.6 6.0Ch. 3.2 - Prob. 12AECh. 3.2 - Multiply or divide as shown. 3.618 0.6Ch. 3.2 - Prob. 14AECh. 3.2 - Multiply or divide as shown. 4.40 0.22Ch. 3.2 - Prob. 16AECh. 3.2 - Multiply or divide as shown. 0.0405 0.9Ch. 3.2 - Prob. 18AECh. 3.2 - Prob. 19AECh. 3.2 - Prob. 20AECh. 3.2 - Multiply or divide as shown. 4 0.01Ch. 3.2 - Multiply or divide as shown. 2.59 70Ch. 3.2 - Multiply or divide as shown. 44.22 6.7Ch. 3.2 - Multiply or divide as shown. 104.2 0.0320Ch. 3.2 - Multiply or divide as shown. 484 0.8Ch. 3.2 - Prob. 26AECh. 3.2 - Prob. 27AECh. 3.2 - Prob. 28AECh. 3.2 - Prob. 29AECh. 3.2 - Prob. 30AECh. 3.2 - Prob. 31AECh. 3.2 - Prob. 32AECh. 3.2 - Multiply or divide as shown. 0.0092 115Ch. 3.2 - Prob. 34AECh. 3.2 - Prob. 35AECh. 3.2 - Prob. 36AECh. 3.2 - Prob. 37AECh. 3.2 - Prob. 38AECh. 3.2 - Multiply or divide as shown. 0.062 27.5Ch. 3.2 - Round the following numbers as indicated. 42.875...Ch. 3.2 - Round the following numbers as indicated. 0.5728...Ch. 3.2 - Round the following numbers as indicated. 6.54...Ch. 3.2 - Round the following numbers as indicated. 117.6252...Ch. 3.2 - Round the following numbers as indicated. 79.135...Ch. 3.2 - Round the following numbers as indicated. 1462.87...Ch. 3.2 - Round the following numbers as indicated. 3.64937...Ch. 3.2 - Round the following numbers as indicated. 19.4839...Ch. 3.2 - Round the following numbers as indicated. 0.2164...Ch. 3.2 - Prob. 10BECh. 3.2 - Divide and round as indicated. Round to two...Ch. 3.2 - Prob. 2CECh. 3.2 - Divide and round as indicated. Round to two...Ch. 3.2 - Prob. 4CECh. 3.2 - Divide and round as indicated. Round to two...Ch. 3.2 - Divide and round as indicated. Round to two...Ch. 3.2 - Divide and round as indicated. Round to two...Ch. 3.2 - Prob. 8CECh. 3.2 - Prob. 9CECh. 3.2 - Prob. 10CECh. 3.2 - Prob. 11CECh. 3.2 - Prob. 12CECh. 3.2 - D. Divide and round as indicated. Round to the...Ch. 3.2 - Prob. 14CECh. 3.2 - Prob. 15CECh. 3.2 - Prob. 16CECh. 3.2 - D. Divide and round as indicated. Round to three...Ch. 3.2 - Prob. 18CECh. 3.2 - Prob. 19CECh. 3.2 - Prob. 20CECh. 3.2 - Prob. 1DECh. 3.2 - Prob. 2DECh. 3.2 - E. Find the average for each of the following sets...Ch. 3.2 - Prob. 4DECh. 3.2 - E. Find the average for each of the following sets...Ch. 3.2 - Prob. 6DECh. 3.2 - Prob. 1EECh. 3.2 - Allied Health How much total medication will a...Ch. 3.2 - Prob. 3EECh. 3.2 - Prob. 4EECh. 3.2 - Prob. 5EECh. 3.2 - Machine Trades How much does 15.7 sq ft of No. 16...Ch. 3.2 - Prob. 7EECh. 3.2 - Prob. 8EECh. 3.2 - Prob. 9EECh. 3.2 - Prob. 10EECh. 3.2 - Prob. 11EECh. 3.2 - Prob. 12EECh. 3.2 - Prob. 13EECh. 3.2 - Prob. 14EECh. 3.2 - Prob. 15EECh. 3.2 - Prob. 16EECh. 3.2 - Prob. 17EECh. 3.2 - Office Services The Happy Hacker electronics...Ch. 3.2 - Prob. 19EECh. 3.2 - Prob. 20EECh. 3.2 - Prob. 21EECh. 3.2 - Prob. 22EECh. 3.2 - Prob. 23EECh. 3.2 - Prob. 24EECh. 3.2 - Prob. 25EECh. 3.2 - Prob. 26EECh. 3.2 - Prob. 27EECh. 3.2 - Prob. 28EECh. 3.2 - Prob. 29EECh. 3.2 - Prob. 30EECh. 3.2 - Prob. 31EECh. 3.2 - Prob. 32EECh. 3.2 - Construction The Passive House Standard is a...Ch. 3.2 - Prob. 34EECh. 3.2 - Prob. 35EECh. 3.2 - Prob. 36EECh. 3.2 - Prob. 37EECh. 3.2 - HVAC A homeowner in the Northeast recently spent...Ch. 3.2 - Prob. 39EECh. 3.2 - Prob. 40EECh. 3.2 - Prob. 41EECh. 3.2 - Prob. 42EECh. 3.2 - Prob. 43EECh. 3.2 - Prob. 1FECh. 3.2 - Prob. 2FECh. 3.2 - Prob. 3FECh. 3.2 - Prob. 4FECh. 3.2 - Prob. 5FECh. 3.2 - Prob. 6FECh. 3.2 - Prob. 7FECh. 3.2 - Prob. 8FECh. 3.2 - Prob. 9FECh. 3.2 - Prob. 10FECh. 3.2 - Prob. 11FECh. 3.2 - Prob. 12FECh. 3.2 - Prob. 13FECh. 3.2 - Prob. 14FECh. 3.2 - Prob. 15FECh. 3.2 - Prob. 16FECh. 3.2 - Prob. 17FECh. 3.2 - Prob. 18FECh. 3.2 - Prob. 19FECh. 3.2 - Prob. 20FECh. 3.2 - Prob. 21FECh. 3.2 - Prob. 22FECh. 3.3 - Prob. 1AECh. 3.3 - Prob. 2AECh. 3.3 - Prob. 3AECh. 3.3 - Prob. 4AECh. 3.3 - Prob. 5AECh. 3.3 - Prob. 6AECh. 3.3 - Prob. 7AECh. 3.3 - Prob. 8AECh. 3.3 - Prob. 9AECh. 3.3 - Prob. 10AECh. 3.3 - Prob. 11AECh. 3.3 - Prob. 12AECh. 3.3 - Prob. 13AECh. 3.3 - Prob. 14AECh. 3.3 - Prob. 15AECh. 3.3 - Prob. 16AECh. 3.3 - Prob. 17AECh. 3.3 - Prob. 18AECh. 3.3 - Prob. 19AECh. 3.3 - Prob. 20AECh. 3.3 - Prob. 21AECh. 3.3 - Prob. 22AECh. 3.3 - Prob. 23AECh. 3.3 - Prob. 24AECh. 3.3 - Prob. 25AECh. 3.3 - Prob. 26AECh. 3.3 - Prob. 27AECh. 3.3 - Prob. 28AECh. 3.3 - Prob. 1BECh. 3.3 - Calculate in decimal form. Round to agree with the...Ch. 3.3 - Calculate in decimal form. Round to agree with the...Ch. 3.3 - Prob. 4BECh. 3.3 - Calculate in decimal form. Round to agree with the...Ch. 3.3 - Calculate in decimal form. Round to agree with the...Ch. 3.3 - Calculate in decimal form. Round to agree with the...Ch. 3.3 - Prob. 8BECh. 3.3 - Calculate in decimal form. Round to agree with the...Ch. 3.3 - Prob. 10BECh. 3.3 - Calculate in decimal form. Round to agree with the...Ch. 3.3 - Prob. 12BECh. 3.3 - Allied Health If one tablet of calcium...Ch. 3.3 - Flooring and Carpeting Estimates of matched or...Ch. 3.3 - Roofing If a roofer lays 1012 squares of shingles...Ch. 3.3 - Machine Trades A bearing journal measures 1.996...Ch. 3.3 - Interior Design Complete the following invoice for...Ch. 3.3 - Construction A land developer purchased a piece of...Ch. 3.3 - Machine Trades Find the corner measurement A...Ch. 3.3 - Automotive Trades A cylinder is normally 3716 in....Ch. 3.3 - Plumbers deal with measurements in inches and...Ch. 3.3 - Plumbing To fit a 45 degree connection, a plumber...Ch. 3.3 - Electronics The frequency of a waveform or...Ch. 3.3 - Water/Wastewater Treatment A reservoir is used at...Ch. 3.3 - Sheet Metal Trades At one time the thickness of...Ch. 3.3 - Prob. 14CECh. 3 - (a) Write or pronounce a decimal number in words....Ch. 3 - Add, subtract, multiply, and divide decimal...Ch. 3 - Find averages. Find the average of 4.2, 4.8, 5.7,...Ch. 3 - Work with decimal fractions. (a) Write as a...Ch. 3 - Solve practical problems involving decimal...Ch. 3 - Write in words. 0.9Ch. 3 - Prob. 2APSCh. 3 - A. Write in words. 23.164Ch. 3 - A. Write in words. 63.219Ch. 3 - A. Write in words. 9.3Ch. 3 - A. Write in words. 3.45Ch. 3 - Prob. 7APSCh. 3 - Write in words. 15.037Ch. 3 - Write as decimal numbers. Seven hundredthsCh. 3 - Write as decimal numbers. Eighteen thousandthsCh. 3 - Write as decimal numbers. Two hundred and eight...Ch. 3 - Write as decimal numbers. Sixteen and seventeen...Ch. 3 - Write as decimal numbers. Sixty-three and...Ch. 3 - Prob. 14APSCh. 3 - Write as decimal numbers. Five and sixty-three...Ch. 3 - Prob. 16APSCh. 3 - Prob. 1BPSCh. 3 - B. Add or subtract as shown. 18.8 + 156.16Ch. 3 - B. Add or subtract as shown. 7.52 + 11.77Ch. 3 - B. Add or subtract as shown. 26 + 0.06Ch. 3 - B. Add or subtract as shown. 3.68 1.74Ch. 3 - Add or subtract as shown. 12.46 8.51Ch. 3 - Prob. 7BPSCh. 3 - Prob. 8BPSCh. 3 - Prob. 9BPSCh. 3 - Add or subtract as shown. 0.232 + 5.079Ch. 3 - Prob. 11BPSCh. 3 - Prob. 12BPSCh. 3 - Prob. 13BPSCh. 3 - Prob. 14BPSCh. 3 - Prob. 15BPSCh. 3 - Prob. 16BPSCh. 3 - B. Add or subtract as shown. 315+1.08Ch. 3 - Prob. 18BPSCh. 3 - Prob. 19BPSCh. 3 - B. Add or subtract as shown. 8.1+0.47145Ch. 3 - Prob. 1CPSCh. 3 - C. Calculate as shown. 0.06 0.05Ch. 3 - Prob. 3CPSCh. 3 - Prob. 4CPSCh. 3 - Prob. 5CPSCh. 3 - C. Calculate as shown. 1.17 4.5Ch. 3 - Prob. 7CPSCh. 3 - Prob. 8CPSCh. 3 - Prob. 9CPSCh. 3 - C. Calculate as shown. 0.078 0.3Ch. 3 - Prob. 11CPSCh. 3 - Prob. 12CPSCh. 3 - Prob. 13CPSCh. 3 - Prob. 14CPSCh. 3 - 4.2+4.61.22.7321+0.41Ch. 3 - 7.23.251.33.5+5.74.02.8Ch. 3 - C. Calculate as shown. 1.2 + 0.7 2.2 + 1.6Ch. 3 - Prob. 18CPSCh. 3 - Round to two decimal digits. 0.007 0.03Ch. 3 - Prob. 20CPSCh. 3 - Round to two decimal digits. 17.8 6.4Ch. 3 - Prob. 22CPSCh. 3 - Prob. 23CPSCh. 3 - Prob. 24CPSCh. 3 - Round to three decimal places. 0.04 0.076Ch. 3 - Prob. 26CPSCh. 3 - Round to three decimal places. 17.6 0.082Ch. 3 - Prob. 28CPSCh. 3 - Round to three decimal places. 27.0072Ch. 3 - Prob. 30CPSCh. 3 - Round to the nearest tenth. 0.08 0.053Ch. 3 - Prob. 32CPSCh. 3 - Round to the nearest tenth. 18.76 4.05Ch. 3 - Round to the nearest tenth. 0.91 0.97Ch. 3 - Round to the nearest tenth. 47.233Ch. 3 - Prob. 36CPSCh. 3 - D. Write as a decimal number. 116Ch. 3 - Prob. 2DPSCh. 3 - D. Write as a decimal number. 532Ch. 3 - Prob. 4DPSCh. 3 - D. Write as a decimal number. 118Ch. 3 - Prob. 6DPSCh. 3 - Write as a decimal number. 21120Ch. 3 - Write as a decimal number. 116Ch. 3 - Prob. 9DPSCh. 3 - Prob. 10DPSCh. 3 - Write as a decimal number. 2516Ch. 3 - Prob. 12DPSCh. 3 - Prob. 13DPSCh. 3 - Prob. 14DPSCh. 3 - Write in decimal form, calculate, round to two...Ch. 3 - Prob. 16DPSCh. 3 - Prob. 17DPSCh. 3 - Machine Trades A 516-in. bolt weighs 0.43 lb. How...Ch. 3 - Metalworking Twelve equally spaced holes are to be...Ch. 3 - Plumbing A plumber finds the length of pipe needed...Ch. 3 - Prob. 4EPSCh. 3 - Prob. 5EPSCh. 3 - Prob. 6EPSCh. 3 - Prob. 7EPSCh. 3 - Prob. 8EPSCh. 3 - Prob. 9EPSCh. 3 - Prob. 10EPSCh. 3 - Prob. 11EPSCh. 3 - Trades Management When the owners of the Better...Ch. 3 - Prob. 13EPSCh. 3 - Sheet Metal Trades To determine the average...Ch. 3 - Prob. 15EPSCh. 3 - Prob. 16EPSCh. 3 - Prob. 17EPSCh. 3 - Prob. 18EPSCh. 3 - Prob. 19EPSCh. 3 - Prob. 20EPSCh. 3 - Prob. 21EPSCh. 3 - Prob. 22EPSCh. 3 - Prob. 23EPSCh. 3 - Printing A 614-page book was printed on paper...Ch. 3 - Allied Health The primary care physician has...Ch. 3 - Prob. 26EPSCh. 3 - Prob. 27EPSCh. 3 - Prob. 28EPSCh. 3 - Prob. 29EPSCh. 3 - Plumbing The inside diameter (I.D.) and outside...Ch. 3 - Prob. 31EPSCh. 3 - Office Services A shop technician earns 18.26 per...Ch. 3 - Prob. 33EPSCh. 3 - Prob. 34EPSCh. 3 - Prob. 35EPSCh. 3 - Prob. 36EPSCh. 3 - Prob. 37EPSCh. 3 - Prob. 38EPSCh. 3 - Prob. 39EPSCh. 3 - Prob. 40EPSCh. 3 - Prob. 41EPSCh. 3 - Prob. 42EPSCh. 3 - Prob. 43EPSCh. 3 - Prob. 44EPSCh. 3 - Prob. 45EPSCh. 3 - Prob. 46EPSCh. 3 - Life Skills A certain electric company charges...Ch. 3 - Plumbing A plumber replaced a showerhead that used...Ch. 3 - Life Skills During the severe droughts in...Ch. 3 - Prob. 50EPSCh. 3 - Prob. 51EPSCh. 3 - Prob. 52EPSCh. 3 - Prob. 53EPSCh. 3 - Construction Over the course of a building...
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