Mathematics For Machine Technology
8th Edition
ISBN: 9781337798310
Author: Peterson, John.
Publisher: Cengage Learning,
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Textbook Question
Chapter 25, Problem 14AR
Analyze each of the following problems to determine whether the problem is a direct or inverse proportion and solve. Round the answers to 3 decimal places where necessary.
a. A reamer tapers 0.0975 inch along a 3.2625-inch length. What is the amount of taper along a 2.1250-inch length?
b. A machine produces 2550 parts in 8.5 hours. How many parts are produced by the machine in 10 hours?
c. Of two gears that mesh, one gear with 12 teeth revolves at 420 rpm. What is the revolutions per minute of the other gear, which has 16 teeth?
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Mathematics For Machine Technology
Ch. 25 - Prob. 1ARCh. 25 - Express these ratios in lowest fractional form. 2....Ch. 25 - Express these ratios in lowest fractional form. 3....Ch. 25 - Express these ratios in lowest fractional form. 4....Ch. 25 - Express these ratios in lowest fractional form. 5....Ch. 25 - Express these ratios in lowest fractional form. 6....Ch. 25 - Express these ratios in lowest fractional form. 7....Ch. 25 - Express these ratios in lowest fractional form....Ch. 25 - Express these ratios in lowest fractional form. 9....Ch. 25 - Express these ratios in lowest fractional form....
Ch. 25 - Express these ratios in lowest fractional form....Ch. 25 - Bronze is an alloy of copper, zinc, and tin with...Ch. 25 - Solve for the unknown value in each of the...Ch. 25 - Analyze each of the following problems to...Ch. 25 - Express each value as a percent. a. 1 b. 112 c....Ch. 25 - Express each value as a percent. a. 0.72 b.2.037...Ch. 25 - Express each percent as a decimal fraction or...Ch. 25 - Express each percent as a common fraction or mixed...Ch. 25 - Find each percentage. Round the answers to 2...Ch. 25 - Find each percent (rate). Round the answers to 2...Ch. 25 - Prob. 21ARCh. 25 - Prob. 22ARCh. 25 - The carbon content of machine steel for gages...Ch. 25 - A piece of machinery is purchased for $8792. In 1...Ch. 25 - Engine pistons and cylinder heads are made of an...Ch. 25 - Before starting two jobs, a shop has an inventory...Ch. 25 - An alloy of stainless steel contains 73.6% iron,...Ch. 25 - Prob. 28AR
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- Analyze each of the following problems to determine whether the problem is a direct or inverse proportion. Set up the proportion and solve. 11. If 1350 parts are produced in 6.75 hours, find the number of parts produced in 8.25 hours.arrow_forwardAnalyze each of the following problems to determine whether the problem is a direct or inverse proportion. Set up the proportion and solve. 13. Two forgings are made of the same stainless steel alloy. A forging, which weighs 76.00 kilograms, contains 0.38 kilogram of chromium. How many kilograms of chromium does the second forging contain if it weighs 96.00 kilograms? Round the answer to 2 decimal places.arrow_forwardAnalyze each of the following problems to determine whether the problem is a direct or inverse proportion. Set up the proportion and solve. 12. The production rate for each of three machines is the same. Using these three machines, 720 parts are produced in 1.6 hours. How many hours will it take two of these machines to produce 720 parts?arrow_forward
- Analyze each of the following problems to determine whether the problem is a direct or inverse proportion. Set up the proportion and solve. 10. A sheet of steel 814feet long weighs 325 pounds. A piece 212feet long is sheared from the sheet. Determine the weight of the 212 -foot piece to the nearest whole pound.arrow_forwardA tabletop is semicircular when its three congruent drop-leaves are used. By how much has the tables area increased when the drop leaves shaded area increased. Give the answer to the nearest whole percent.arrow_forwardA reamer tapers 0.130" along a 4.250" length (Figure 216). Set up a proportion and determine length A for each of the following problems. Express the answers to 3 decimal places.arrow_forward
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