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Unformatted text preview: make x dozen brownies can be estimated by the formula, 2 C x 79x 20 =+ =+. If they have $100 to be used to make the brownies, how many dozen brownies can the association make to sell at a fundraiser. 6. At a winery in Napa Valley, California, one pipe can fill a tank with wine in 3 hours and another pipe can empty the tank in 5 hours. If the valves to both pipes are open, how long will it take to fill the empty tank? 7. Linda and John Franco own a house cleaning service. When Linda cleans Damon’s house by herself, it takes 7 hours. When Linda and John work together, they can clean the house in 4 hours. How long will it take John to clean the house by himself?...
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 Fall '10
 JanetFrewing
 Quadratic Formula, Fractions, Height, Quadratic equation, Elementary algebra, Mathematics in medieval Islam

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