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mac1140_lecture9_1

# mac1140_lecture9_1 - L9 2.2 Linear Applications Use...

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70 L9 §2 .2 L inear App l ica t ion s Use Supplemental 1 for the reference formulas. Example: A right circular cylinder has radius 8 in. and volume 640 π cubic inches. What is its height? Steps in Solving Application Problems: 1. Draw a sketch or chart and write down all the information provided. 2. Let a variable represent the unknown (i.e. x ).

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71 Example. The length of a rectangle is seven feet more than twice its width. The perimeter is 50 feet. Find the area of the rectangle.
Example . In 4 hours, two computers working together can produce the schedule of classes for the university. The first computer takes 9 hours working alone to do the job. How long does it take the other computer to do the job alone? Rate (r)

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mac1140_lecture9_1 - L9 2.2 Linear Applications Use...

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