Explanation Formula used: “The Cross-product rule: If a b = c d then a ⋅ d = b ⋅ c .” Calculation: Given that the cost of small, large, medium, and extra-large size are $9400, $19,200, $22,600, and $12,800 respectively. The total cost of all can be calculated as, 9400 + 19 , 200 + 22 , 600 + 12 , 800 = 64 , 000 Obtain the amount of cost for small size as follows. The amount of cost for small size can be written in the form of proportion equation as 9400 64,000 = x 40 , 000 . Solve the proportion equation by using the cross-product rule as follows. 9400 64,000 = x 40 , 000 x ⋅ 64 , 000 = 9400 ⋅ 40 , 000 x = 376 , 000 , 000 64 , 000 x = 5875 Thus, the amount of cost for small size is $ 5875 _ . Obtain the amount of cost for medium size as follows. The amount of cost for medium size can be written in the form of proportion equation as 22 , 600 64,000 = x 40 , 000 . Solve the proportion equation by using the cross-product rule as follows. 22 , 600 64,000 = x 40 , 000 x ⋅ 64 , 000 = 22 , 600 ⋅ 40 , 000 x = 904 , 000 , 000 64 , 000 x = 14 , 125 Thus, the amount of cost for medium size is $ 14 , 125 _

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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Chapter 4, Problem 61GPS

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Chapter 4, Problem 60GPS

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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=x8 Ch. 4.1 - Solve these proportion equations. 6R=572 Ch. 4.1 - Solve these proportion equations. y60=53 Ch. 4.1 - Solve these proportion equations. 215=8H Ch. 4.1 - Solve these proportion equations. 5P=307 Ch. 4.1 - Solve these proportion equations. 16=17x Ch. 4.1 - Solve these proportion equations. A2.5=1310

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Solution Summary: The author calculates the cost of small, large, medium, and extra-large size by using the cross-product rule.

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