# Answers to math word problems free

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?

 ebaines Posts: 10,055, Reputation: 5539 Expert #2 May 25, 2010, 07:30 AM
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!
 harriscn Posts: 1, Reputation: 10 Junior Member #3 Apr 23, 2011, 05:55 PM
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?  Unknown008 Posts: 8,147, Reputation: 3745 Uber Member #4 Apr 24, 2011, 09:56 AM The formula for the total money after compound interest is added is: $Sum = Principal \times $$1 + \frac{Rate}{100}$$^{time}$ 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? Not your question?  Thread Tools Search this Thread Search this Thread: Advanced Search ## Check out some similar questions! Free answers to math word problems [ 16 Answers ] You are trying to decide from what company to buy your next 5-year supply of light bulbs. Would you look to the company whose light bulbs have the greatest mean or greatest median life? Answers to math word problems [ 3 Answers ] Table- gender: men's 46% women's 54% shoe style: athletic 22% casual 61% dress 17% The info is about shoes produced at a factory during one day. Assume that the events are independent. Find the probability that a randomly chosen pair of shoes is the given type. 1.... Answers to math word problems for free [ 1 Answers ] Smitty isn't superstitious, but whenever she finds a coin in the street, she makes a wish and tosses it into a fountain. Last week, she hit the sidewalk jackpot. On each of six days (Monday through Saturday), she found a U.S. Coin of a different denomination (penny,$0.01; nickel, \$0.05; dime,...

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