This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1856 Excerpt: ...average does it move in 1 minute? 6T. If it require 35 yards of carpeting, which is f of a yard wide to cover a floor, how many yards, which is 1 yards wide, will be necessary to cover the same floor? COMPOUND PROPORTION. Art. 17o. Compound Proportion teaches to find a required quantity iu a proportion when it depends ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1856 Excerpt: ...average does it move in 1 minute? 6T. If it require 35 yards of carpeting, which is f of a yard wide to cover a floor, how many yards, which is 1 yards wide, will be necessary to cover the same floor? COMPOUND PROPORTION. Art. 17o. Compound Proportion teaches to find a required quantity iu a proportion when it depends on more than three terms. 1. If 6 men can earn $72 in 10 days, by working 12 hours a day, how many dollars can 15 men earn in 8 days, by working 8 hours a day? Remare.--We will first solve this question by analysis. Analysis If 6 men in a certain time earn $72, 1 man in the same time will earn of $72= $12; and 15 men will earn 15 times $12 = $180. If in 10 days 15 men earn $180, in 1 day they wiU earn T'ff of $180 = $18; and in 8 days they will earn 8 times $18 = $144. If in 8 days by working 12 hours a day, 15 men earn $144, by working 1 hour a day, they will earn rj of $144 = $12; and by working 8 hours a day they will earn 8 times $12 = $96. SOLUTION BT CANCELLATION. Remare.--As the question is read the pupil will find it of assistance to write it down in the following manner, as lie can then more easily remember the question and form the ratios. Taking the above example we proceed thus men. $. days. hours. 6 72 10 12 15 8 8_ Xt 3 4 Jt X$ $ 8 Explanation If 6 men in a certain time earn $72, 1 man will earn of $72, and 15 men will earn y of $72. If 15 men earn y 0f $72 in 10 days, in 1 day they will earn t as much, and in 8 days as much, which is T8T of y of $72. If 15 men in 8 days earn T8Y of y of $72 by working 12 hours a day, by working 1 hour a day they will earn-A as much, and by working 8 hours a day T85 as much, which is T8 of y8 of y of $72 = $96. 2. If 12 men can mow 48 acres of grass in 8 days, by working 5 hours a day; how m...
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Add this copy of The American Philosophical Arithmetic: Designed for the to cart. $61.07, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2016 by Palala Press.