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College Algebra
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Dick and Jane have a small typing business. Dick can type a 50-page term paper in 4 hours and Jane can do the same job in 3 hours. A student must hand in a 50-page term paper in 2.5 hours. Can Dick and Jane get it typed in time if they both work on it? How long will it take to type the paper? |
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Dry air cools at the rate of about 5.5 degrees F per 1000-foot rise. If ground temperature is 80 degrees F, what is the approximate air temperature around an airplane flying at 25,000 feet above the ground? |
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New energy conservation recommendations suggest that window area in a room be reduced by 40%. A new building has plans that call for a rectangular window 5 feet high by 4 feet wide in each room. The architect says that for design consistency, the same amount should be subtracted from the height and width of each window. How much should be subtracted from the height and width of each window? What will be the dimensions of the new window? |
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If 8 times a number is decreased by 9, the result is 71. What is the number? |
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*** Reserved for future problem solution *** |
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*** Reserved for future problem solution *** |
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*** Reserved for future problem solution *** |
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*** Reserved for future problem solution *** |
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*** Reserved for future problem solution *** |
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