By Robert K. Gerver, Richard J. Sgroi
Through combining algebraic and graphical methods with functional enterprise and private finance purposes, South-Westerns monetary ALGEBRA, motivates highschool scholars to discover algebraic pondering styles and features in a monetary context. monetary ALGEBRA can help your scholars be successful through supplying an functions established studying method incorporating Algebra I, Algebra II, and Geometry subject matters. Authors Gerver and Sgroi have spent greater than 25 years operating with scholars of all skill degrees they usually have chanced on the main luck while connecting math to the true global. monetary ALGEBRA encourages scholars to be actively all for using mathematical principles to their daily lives.
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Express the increase in price as a percent of the price in 2003. Round to the nearest tenth of a percent. 12. Alexa purchased 700 shares of Campagna Corporation stock for x dollars per share in 2005. She sold them in 2010 for y dollars per share, where y < x. a. Did Alexa have a gross capital gain or a gross capital loss? Explain. 700y – 700x b. Alexa used the formula ____________ to compute the percent of 700x y–x the loss. Her husband Tom used the formula _____ to compute x the percent of the loss.
She sold them later that year for $35 per share. Express her loss as a percent of the purchase price. Round to the nearest percent. EXAMPLE 4 Andy paid w dollars for shares of a corporation that manufactured cell phones. He sold it for y dollars. Express his capital gain as a percent of the original purchase price. Round to the nearest tenth of a percent. SOLUTION Find the capital gain using variables. Substitute values. Capital gain = Selling price − Purchase price Capital gain = y − w Think of y − w as part of a whole.
This is the same as subtracting price A and adding price D, or A __ B C A D __ + + __ – __ + __ 3 3 3 3 3 Rearranging the terms and simplifying, this process is the same as ﬁnding the average for days 2–4. A B C D B C D B+C+D A __ __ – + __ + __ + __ = __ + __ + __ = __________ 3 3 3 3 3 3 3 3 3 EXAMPLE 2 Use the subtraction and addition method to determine the 4-day SMA for the following closing prices. $121, SOLUTION $122, $120, $119, $124, $128, $126 Calculate the average closing prices of days 1–4.