Unit 2 Discussion Board.docx

Unit 2 Discussion Board.docx - Question 1 Proportions are...

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Question 1: Proportions are also a valuable tool in business. If the time it takes to do a task is directly related to the cost the business has to charge for that task, any task can be evaluated for the cost. Set up a proportion and solve it to demonstrate this type of business application. (An example might be 5 hours / \$20 = 10 hours / x). Remember that setting the cross products (multiplications) equal, and then solving for x is the way to solve a proportion. Three hours cost \$ 60. For twelve hours it would cost 12*60 = \$ 720 720 = 3X Divide by three 720/3 = 240 Therefore, baby sitting will cost \$ 240 Question 2: Equations are used to demonstrate many different things. In the equation C = 0.17x, C stands for cost and x stands for the number of kilowatt hours of electricity a business might use in a month. Determine the cost of electricity for 1,000, 1,500, and 3,000 kilowatt hours of usage. Also, show how C / .17 = x is can be used to determine how many kilowatt hours have been used if you know cost and rate per kilowatt hour (\$0.17). Find an electric bill for your home or apartment and determine the cost per kilowatt hour, or research your power provider for this information.

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• Fall '14
• Kilowatt hour, simple interest formula

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