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Asked May 24, 2010, 06:06 PM
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3 Answers ProfessorWilliamson counts his Midterm as 2/3 of the grade and his final as 1/3 of the grade. Wendy scored only 48 on the midterm. What range of Scores on the final exam would put Wendys average Between 70 and 79 inclusive? |
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| Solve for two values of F to give the high and low scores that get the final grade to 70 and 79: 2/3 x 48 + 1/3 x F = 70 2/3 x 48 + 1/3 x F = 79 I think you'll find that Wendy is in trouble! | ||||
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| In 18 years, a family expects to need $86,000 for a child's college education. If they can invest at a rate of 6% per year, compounded monthly, how much do they need to deposit immediately to have sufficient funds 18 years from now? | ||||
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| The formula for the total money after compound interest is added is: The interest is compounded annually, and you're given the time in years, so there is no problem here. Sum = 86000 Principal = What you want to find Rate = 6 Time = 18 Can you post what you get?  | ||||
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