
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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Textbook Question
Chapter 4.1, Problem 11BE
Solve these proportion equations.
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2- A hot ball (D=15 cm ) is cooled by forced air T.-30°C, the rate of heat transfer from the ball
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Answer questions 8.3.3 and 8.3.4 respectively
8.3.4 .WP An article in Medicine and Science in Sports and
Exercise [“Electrostimulation Training Effects on the Physical Performance of Ice Hockey Players” (2005, Vol. 37, pp.
455–460)] considered the use of electromyostimulation (EMS) as
a method to train healthy skeletal muscle. EMS sessions consisted of 30 contractions (4-second duration, 85 Hz) and were carried
out three times per week for 3 weeks on 17 ice hockey players.
The 10-meter skating performance test showed a standard deviation of 0.09 seconds. Construct a 95% confidence interval of the
standard deviation of the skating performance test.
Chapter 4 Solutions
Mathematics for the Trades: A Guided Approach (10th Edition) - Standalone book
Ch. 4.1 - Complete the following tables.Ch. 4.1 - A. Complete the following tables. 2.Ch. 4.1 - A. Complete the following tables. 3.Ch. 4.1 - Solve these proportion equations. 32=x8Ch. 4.1 - Solve these proportion equations. 6R=572Ch. 4.1 - Solve these proportion equations. y60=53Ch. 4.1 - Solve these proportion equations. 215=8HCh. 4.1 - Solve these proportion equations. 5P=307Ch. 4.1 - Solve these proportion equations. 16=17xCh. 4.1 - Solve these proportion equations. A2.5=1310
Ch. 4.1 - Solve these proportion equations. 27M=30.8Ch. 4.1 - Solve these proportion equations. 25=T4.5Ch. 4.1 - Solve these proportion equations. 0.12N=27Ch. 4.1 - Solve these proportion equations. 13823=18xCh. 4.1 - Solve these proportion equations. 3.251.5=A0.6Ch. 4.1 - Solve these proportion equations. x34.86=1.28.3Ch. 4.1 - Solve these proportion equations. 212R=114314Ch. 4.1 - Solve these proportion equations....Ch. 4.1 - Solve these proportion equations....Ch. 4.1 - Solve these proportion equations....Ch. 4.1 - Solve these proportion equations. 312in.W=1.40.05Ch. 4.1 - Solve. Automotive Trades The compression ratio in...Ch. 4.1 - Prob. 2CECh. 4.1 - Solve. Machine Trades If 28 tapered pins can be...Ch. 4.1 - Solve. Carpentry If 6 lb of nails are needed for...Ch. 4.1 - Solve. Masonry For a certain kind of plaster work,...Ch. 4.1 - Prob. 6CECh. 4.1 - Solve. Machine Trades A cylindrical oil tank 8 ft...Ch. 4.1 - Prob. 8CECh. 4.1 - Solve. Welding A 10-ft bar of I-beam weighs 208...Ch. 4.1 - Solve. Photography A photographer must mix a...Ch. 4.1 - Solve. General Trades If you earn 684.80 for a...Ch. 4.1 - Solve. Machine Trades A machinist can produce 12...Ch. 4.1 - Solve. Automotive Trades The headlights on a car...Ch. 4.1 - Prob. 14CECh. 4.1 - Solve. Agriculture To prepare a pesticide spray,...Ch. 4.1 - Solve. Painting A painter must thin some paint for...Ch. 4.1 - Solve. Allied Health The label on a concentrated...Ch. 4.1 - Solve. Automotive Trades In winter weather,...Ch. 4.1 - Prob. 19CECh. 4.1 - Prob. 20CECh. 4.1 - Prob. 21CECh. 4.1 - Solve. Sports and Leisure Power hitter Sammy...Ch. 4.1 - Prob. 23CECh. 4.1 - Prob. 24CECh. 4.1 - Solve. Allied Health Medication Q is available...Ch. 4.1 - Prob. 26CECh. 4.1 - Prob. 27CECh. 4.1 - Prob. 28CECh. 4.1 - Prob. 29CECh. 4.1 - Prob. 30CECh. 4.1 - Solve. Trades Management A small welding shop...Ch. 4.1 - Prob. 32CECh. 4.1 - Prob. 33CECh. 4.1 - Prob. 34CECh. 4.1 - Prob. 35CECh. 4.2 - Complete the following tables. 1. Similar...Ch. 4.2 - Complete the following tables. 2. Similar figuresCh. 4.2 - Complete the following tables.Ch. 4.2 - Complete the following tables.Ch. 4.2 - Practical Applications Problem 1 Metalworking A...Ch. 4.2 - Practical Applications Architecture The...Ch. 4.2 - Practical Applications Automotive Trades...Ch. 4.2 - Practical Applications Transportation The distance...Ch. 4.2 - Prob. 5BECh. 4.2 - Practical Applications Industrial Technology If 60...Ch. 4.2 - Practical Applications Automotive Trades If the...Ch. 4.2 - Practical Applications General Trades The length...Ch. 4.2 - Practical Applications Construction The Santa...Ch. 4.2 - Practical Applications Machine Trades A pair of...Ch. 4.2 - Practical Applications Manufacturing A 15-tooth...Ch. 4.2 - Practical Applications Electronics The power gain...Ch. 4.2 - Prob. 13BECh. 4.2 - Prob. 14BECh. 4.2 - Practical Applications Automotive Trades The...Ch. 4.2 - Prob. 16BECh. 4.2 - Practical Applications Machine Trades It is known...Ch. 4.2 - Prob. 18BECh. 4.2 - Prob. 19BECh. 4.2 - Practical Applications Architecture A wrought-iron...Ch. 4.2 - Prob. 21BECh. 4.2 - Electrical Trades The electrical resistance of a...Ch. 4.2 - Prob. 23BECh. 4.2 - Practical Applications Sheet Metal Trades If the...Ch. 4.2 - Prob. 25BECh. 4.2 - Prob. 26BECh. 4.2 - Prob. 27BECh. 4.2 - Prob. 28BECh. 4.2 - Prob. 29BECh. 4.2 - Prob. 30BECh. 4.2 - Prob. 31BECh. 4.3 - Prob. 1AECh. 4.3 - Convert to a percent. 1Ch. 4.3 - Convert to a percent. 0.5Ch. 4.3 - Prob. 4AECh. 4.3 - Prob. 5AECh. 4.3 - Prob. 6AECh. 4.3 - Prob. 7AECh. 4.3 - Prob. 8AECh. 4.3 - Prob. 9AECh. 4.3 - Prob. 10AECh. 4.3 - Prob. 11AECh. 4.3 - Prob. 12AECh. 4.3 - Prob. 13AECh. 4.3 - Prob. 14AECh. 4.3 - Prob. 15AECh. 4.3 - Prob. 16AECh. 4.3 - Convert to a percent. 32Ch. 4.3 - Prob. 18AECh. 4.3 - Prob. 19AECh. 4.3 - Convert to a percent. 15Ch. 4.3 - Prob. 21AECh. 4.3 - Prob. 22AECh. 4.3 - Prob. 23AECh. 4.3 - Prob. 24AECh. 4.3 - Prob. 25AECh. 4.3 - Prob. 26AECh. 4.3 - Prob. 27AECh. 4.3 - Prob. 28AECh. 4.3 - Prob. 29AECh. 4.3 - Prob. 30AECh. 4.3 - Prob. 31AECh. 4.3 - Prob. 32AECh. 4.3 - Prob. 33AECh. 4.3 - Prob. 34AECh. 4.3 - Prob. 35AECh. 4.3 - Prob. 36AECh. 4.3 - Prob. 37AECh. 4.3 - Prob. 38AECh. 4.3 - Prob. 39AECh. 4.3 - Prob. 40AECh. 4.3 - Prob. 1BECh. 4.3 - Prob. 2BECh. 4.3 - Prob. 3BECh. 4.3 - Prob. 4BECh. 4.3 - Prob. 5BECh. 4.3 - Prob. 6BECh. 4.3 - Prob. 7BECh. 4.3 - Prob. 8BECh. 4.3 - Prob. 9BECh. 4.3 - Prob. 10BECh. 4.3 - Prob. 11BECh. 4.3 - Prob. 12BECh. 4.3 - Prob. 13BECh. 4.3 - Prob. 14BECh. 4.3 - Prob. 15BECh. 4.3 - Prob. 16BECh. 4.3 - Prob. 17BECh. 4.3 - Prob. 18BECh. 4.3 - Prob. 19BECh. 4.3 - Prob. 20BECh. 4.3 - Prob. 21BECh. 4.3 - Prob. 22BECh. 4.3 - Prob. 23BECh. 4.3 - Prob. 24BECh. 4.3 - Prob. 25BECh. 4.3 - Prob. 26BECh. 4.3 - Prob. 27BECh. 4.3 - Prob. 28BECh. 4.3 - Prob. 29BECh. 4.3 - Prob. 30BECh. 4.3 - Prob. 31BECh. 4.3 - Prob. 32BECh. 4.3 - Prob. 1CECh. 4.3 - Prob. 2CECh. 4.3 - Prob. 3CECh. 4.3 - Prob. 4CECh. 4.3 - Prob. 5CECh. 4.3 - Prob. 6CECh. 4.3 - Prob. 7CECh. 4.3 - Prob. 8CECh. 4.3 - Prob. 9CECh. 4.3 - Rewrite each percent as a fraction in lowest...Ch. 4.3 - Prob. 11CECh. 4.3 - Prob. 12CECh. 4.3 - Prob. 13CECh. 4.3 - Prob. 14CECh. 4.3 - Prob. 15CECh. 4.3 - Prob. 16CECh. 4.3 - Prob. 17CECh. 4.3 - Prob. 18CECh. 4.3 - Prob. 19CECh. 4.3 - Prob. 20CECh. 4.4 - Solve. 4 is _________ % of 5.Ch. 4.4 - Prob. 2AECh. 4.4 - Prob. 3AECh. 4.4 - Prob. 4AECh. 4.4 - Prob. 5AECh. 4.4 - Prob. 6AECh. 4.4 - Prob. 7AECh. 4.4 - Prob. 8AECh. 4.4 - Solve. What percent of 54 is 36?Ch. 4.4 - Prob. 10AECh. 4.4 - Prob. 11AECh. 4.4 - Solve. 13 is what percent of 25?Ch. 4.4 - Prob. 13AECh. 4.4 - Prob. 14AECh. 4.4 - Prob. 15AECh. 4.4 - Solve. 60% of what number is 14?Ch. 4.4 - Prob. 17AECh. 4.4 - Prob. 18AECh. 4.4 - Prob. 19AECh. 4.4 - Prob. 20AECh. 4.4 - Solve. 30% of what number is equal to 12?Ch. 4.4 - Prob. 22AECh. 4.4 - Prob. 23AECh. 4.4 - Prob. 24AECh. 4.4 - Prob. 1BECh. 4.4 - Solve. What percent of 10 is 2.5?Ch. 4.4 - Solve. 6% of 3.29 is _________.Ch. 4.4 - Prob. 4BECh. 4.4 - Prob. 5BECh. 4.4 - Prob. 6BECh. 4.4 - Prob. 7BECh. 4.4 - Solve. 0.75 is _________ % of 37.50.Ch. 4.4 - Prob. 9BECh. 4.4 - Prob. 10BECh. 4.4 - Prob. 11BECh. 4.4 - Prob. 12BECh. 4.4 - Prob. 13BECh. 4.4 - Prob. 14BECh. 4.4 - Prob. 15BECh. 4.4 - Prob. 16BECh. 4.4 - Prob. 17BECh. 4.4 - Prob. 18BECh. 4.4 - Prob. 1CECh. 4.4 - Prob. 2CECh. 4.4 - Prob. 3CECh. 4.4 - Practical Applications Masonry On the basis of...Ch. 4.4 - Practical Applications Automotive Trades The...Ch. 4.4 - Prob. 6CECh. 4.4 - Practical Applications General Trades A worker...Ch. 4.4 - Prob. 8CECh. 4.4 - Prob. 9CECh. 4.4 - Prob. 10CECh. 4.4 - Practical Applications Carpentry Preparing an...Ch. 4.4 - Practical Applications Printing Jiffy Print needs...Ch. 4.4 - Prob. 13CECh. 4.4 - Prob. 14CECh. 4.4 - Prob. 15CECh. 4.4 - Prob. 16CECh. 4.4 - Construction Quality Homes Construction Company...Ch. 4.4 - Prob. 18CECh. 4.4 - Practical Applications Allied Health A typical...Ch. 4.4 - Prob. 20CECh. 4.4 - Prob. 21CECh. 4.4 - Prob. 22CECh. 4.4 - Sports and Leisure During the 2012 Wimbledon...Ch. 4.4 - Prob. 24CECh. 4.4 - Prob. 25CECh. 4.4 - Prob. 26CECh. 4.4 - Prob. 27CECh. 4.4 - Prob. 28CECh. 4.4 - Practical Applications Welding The allowable shear...Ch. 4.4 - Practical Applications Water/Wastewater Treatment...Ch. 4.4 - Prob. 31CECh. 4.4 - Prob. 32CECh. 4.4 - Prob. 33CECh. 4.4 - Prob. 34CECh. 4.4 - Prob. 35CECh. 4.4 - Prob. 36CECh. 4.4 - Allied Health A pharmaceutical sales...Ch. 4.4 - Prob. 38CECh. 4.4 - Prob. 39CECh. 4.5 - Electronics A CB radio is rated at 7.5 watts, and...Ch. 4.5 - Prob. 2ECh. 4.5 - Electrical Trades An engine supplies 110 hp to an...Ch. 4.5 - Prob. 4ECh. 4.5 - Prob. 5ECh. 4.5 - Prob. 6ECh. 4.5 - Prob. 7ECh. 4.5 - Life Skills If you earn 12% commission on sales of...Ch. 4.5 - Metalworking On a cutting operation, 2 sq ft of...Ch. 4.5 - Prob. 10ECh. 4.5 - Prob. 11ECh. 4.5 - Prob. 12ECh. 4.5 - Manufacturing A small gasoline shop engine...Ch. 4.5 - Prob. 14ECh. 4.5 - Prob. 15ECh. 4.5 - Trades Management A welding shop charges the...Ch. 4.5 - Prob. 17ECh. 4.5 - Prob. 18ECh. 4.5 - Prob. 19ECh. 4.5 - Prob. 20ECh. 4.5 - Prob. 21ECh. 4.5 - Interior Design An interior designer working for a...Ch. 4.5 - Retail Merchandising A one-terabyte external hard...Ch. 4.5 - Trades Management Chris paid for the initial...Ch. 4.5 - Prob. 25ECh. 4.5 - Prob. 26ECh. 4.5 - Prob. 27ECh. 4.5 - Prob. 28ECh. 4.5 - Automotive Trades A new tire had a tread depth of...Ch. 4.5 - Prob. 30ECh. 4.5 - Prob. 31ECh. 4.5 - Prob. 32ECh. 4.5 - Prob. 33ECh. 4.5 - Machine Trades Complete the following table of...Ch. 4.5 - Electrical Trades An electrician purchases some...Ch. 4.5 - Prob. 36ECh. 4.5 - Prob. 37ECh. 4.5 - Culinary Arts A wholesale food sales rep is paid a...Ch. 4.5 - Life Skills A sales rep for roofing materials...Ch. 4.5 - Prob. 40ECh. 4.5 - Trades Management Last year, the owner of the...Ch. 4.5 - Trades Management Because it has a history of...Ch. 4.5 - Prob. 43ECh. 4.5 - Prob. 44ECh. 4.5 - Prob. 45ECh. 4.5 - Prob. 46ECh. 4.5 - Prob. 47ECh. 4.5 - Prob. 48ECh. 4.5 - Prob. 49ECh. 4.5 - Prob. 50ECh. 4.5 - Prob. 51ECh. 4.5 - Prob. 52ECh. 4.5 - Allied Health A patient originally weighing 180 lb...Ch. 4.5 - Solve
Retail Merchandising A jacket was reduced in...Ch. 4.5 - Prob. 55ECh. 4.5 - Prob. 56ECh. 4.5 - Prob. 57ECh. 4.5 - Prob. 58ECh. 4.5 - Prob. 59ECh. 4.5 - Prob. 60ECh. 4.5 - Prob. 61ECh. 4 - Calculate ratios. (a) Find the ratio of the pulley...Ch. 4 - Solve proportions. (a) Solve for x. 8x=1215...Ch. 4 - Solve problems involving proportions. (a)...Ch. 4 - Write fractions and decimal numbers as percents....Ch. 4 - Prob. 5PCh. 4 - Solve problems involving percent. (a) Find 3712 of...Ch. 4 - A. Complete the following tables.Ch. 4 - A. Complete the following tables.Ch. 4 - B. Solve the following proportions. 56=x42Ch. 4 - B. Solve the following proportions. 815=12xCh. 4 - Prob. 3BPSCh. 4 - B. Solve the following proportions. 312x=51418Ch. 4 - B. Solve the following proportions. 1.65.2=4.4xCh. 4 - B. Solve the following proportions....Ch. 4 - C. Write each number as a percent. 0.72Ch. 4 - C. Write each number as a percent. 0.06Ch. 4 - Prob. 3CPSCh. 4 - C. Write each number as a percent. 0.358Ch. 4 - Prob. 5CPSCh. 4 - C. Write each number as a percent. 3.03Ch. 4 - Prob. 7CPSCh. 4 - Prob. 8CPSCh. 4 - Prob. 9CPSCh. 4 - C. Write each number as a percent. 235Ch. 4 - Prob. 1DPSCh. 4 - Prob. 2DPSCh. 4 - Prob. 3DPSCh. 4 - D. Write each percent as a decimal number. 94%Ch. 4 - Prob. 5DPSCh. 4 - D. Write each percent as a decimal number. 0.09%Ch. 4 - Prob. 7DPSCh. 4 - Prob. 8DPSCh. 4 - Prob. 9DPSCh. 4 - D. Write each percent as a decimal number. 8.02%Ch. 4 - Prob. 11DPSCh. 4 - D. Write each percent as a decimal number. 210%Ch. 4 - Prob. 1EPSCh. 4 - E. Write each of the following percents as a...Ch. 4 - Prob. 3EPSCh. 4 - Prob. 4EPSCh. 4 - Prob. 5EPSCh. 4 - Prob. 6EPSCh. 4 - Prob. 7EPSCh. 4 - E. Write each of the following percents as a...Ch. 4 - F. Solve. 3 is _____ % of 5.Ch. 4 - F. Solve. 5% is 120 is _____.Ch. 4 - Prob. 3FPSCh. 4 - F. Solve. 16 is what percent of 8?Ch. 4 - Prob. 5FPSCh. 4 - F. Solve. 1.38 is _____ % of 1.15.Ch. 4 - Prob. 7FPSCh. 4 - F. Solve. 250% of 50 is _____.Ch. 4 - Prob. 9FPSCh. 4 - Prob. 10FPSCh. 4 - Prob. 1GPSCh. 4 - Metalworking Cast iron contains up to 4.5% carbon,...Ch. 4 - Prob. 3GPSCh. 4 - Prob. 4GPSCh. 4 - Prob. 5GPSCh. 4 - Retail Merchandising A computer printer sells for...Ch. 4 - Prob. 7GPSCh. 4 - Prob. 8GPSCh. 4 - Prob. 9GPSCh. 4 - Masonry A mason must purchase enough mortar mix to...Ch. 4 - Manufacturing A production job is bid at 6275, but...Ch. 4 - Metalworking When heated, a metal rod expands...Ch. 4 - Prob. 13GPSCh. 4 - Automotive Trades A 140-hp automobile engine...Ch. 4 - Prob. 15GPSCh. 4 - Prob. 16GPSCh. 4 - Prob. 17GPSCh. 4 - Trades Management To purchase a truck for his...Ch. 4 - Prob. 19GPSCh. 4 - Interior Design An interior designer is able to...Ch. 4 - Prob. 21GPSCh. 4 - Prob. 22GPSCh. 4 - Prob. 23GPSCh. 4 - Automotive Trades The headlights on a car are...Ch. 4 - Prob. 25GPSCh. 4 - Prob. 26GPSCh. 4 - Prob. 27GPSCh. 4 - Prob. 28GPSCh. 4 - Machine Trades Six steel parts weigh 1.8 lb. How...Ch. 4 - Prob. 30GPSCh. 4 - Prob. 31GPSCh. 4 - Drafting Drafters usually use a scale of 14 in. =...Ch. 4 - Prob. 33GPSCh. 4 - Prob. 34GPSCh. 4 - Prob. 35GPSCh. 4 - Prob. 36GPSCh. 4 - Prob. 37GPSCh. 4 - Printing A printer needs 12,000 good copies of a...Ch. 4 - Prob. 39GPSCh. 4 - Prob. 40GPSCh. 4 - Prob. 41GPSCh. 4 - General Trades Find the missing dimension in the...Ch. 4 - Physics In a closed container, the pressure is...Ch. 4 - Automotive Trades The mechanical efficiency of a...Ch. 4 - Prob. 45GPSCh. 4 - Allied Health Calculate the percent concentration...Ch. 4 - Prob. 47GPSCh. 4 - Prob. 48GPSCh. 4 - Prob. 49GPSCh. 4 - Prob. 50GPSCh. 4 - Prob. 51GPSCh. 4 - Prob. 52GPSCh. 4 - Prob. 53GPSCh. 4 - Prob. 54GPSCh. 4 - Prob. 55GPSCh. 4 - Prob. 56GPSCh. 4 - Prob. 57GPSCh. 4 - Prob. 58GPSCh. 4 - Prob. 59GPSCh. 4 - Plumbing A homeowner purchases a new hot-water...Ch. 4 - Prob. 61GPSCh. 4 - Prob. 62GPSCh. 4 - Prob. 63GPSCh. 4 - Prob. 64GPSCh. 4 - Prob. 65GPS
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- 8.6.7 Consider the tire-testing data in Exercise 8.2.3. Compute a 95% tolerance interval on the life of the tires that has confidence level 95%. Compare the length of the tolerance interval with the length of the 95% CI on the population mean. Which interval is shorter? Discuss the difference in interpretation of these two intervals.arrow_forward8.6.2 Consider the natural frequency of beams described in Exercise 8.2.8. Compute a 90% prediction interval on the diameter of the natural frequency of the next beam of this type that will be tested. Compare the length of the prediction interval with the length of the 90% CI on the population mean. 8.6.3 Consider the television tube brightness test described in Exercise 8.2.7. Compute a 99% prediction interval on the brightness of the next tube tested. Compare the length of the prediction interval with the length of the 99% CI on the population mean.arrow_forwardAnswer question S8 stepwisearrow_forward
- Answer questions 8.2.11 and 8.2.12 respectivelyarrow_forward8.4.2 An article in Knee Surgery, Sports Traumatology, Arthroscopy [“Arthroscopic Meniscal Repair with an Absorbable Screw: Results and Surgical Technique” (2005, Vol. 13, pp. 273–279)] showed that only 25 out of 37 tears (67.6%) located between 3 and 6 mm from the meniscus rim were healed. a. Calculate a two-sided 95% confidence interval on the proportion of such tears that will heal. b. Calculate a 95% lower confidence bound on the proportion of such tears that will heal. 8.4.3 An article in the Journal of the American Statistical Association [“Illustration of Bayesian Inference in Normal Data Models Using Gibbs Sampling” (1990, Vol. 85, pp. 972–985)] measured the weight of 30 rats under experiment controls. Suppose that 12 were underweight rats. a. Calculate a 95% two-sided confidence interval on the true proportion of rats that would show underweight from the experiment. b. Using the point estimate of p obtained from the preliminary sample, what sample size is needed to be 95%…arrow_forward8.4.8 Use the data from Exercise 8.4.2 to compute the two-sided Agresti-Coull CI on the proportion of tears that heal. Compare and discuss the relationship of this interval to the one computed in Exercise 8.4.2.arrow_forward
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