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The Answers resource on WyzAnt: A good advertisement, or a disservice?

Hey everybody, new to blogging, so here we go!  I joined WyzAnt at the end of last year, and in 6 months, I've somehow managed to be one of the more active tutors in my area.   Part of my approach with my students is to reeeeeally make the session into a dialogue.  I tutor math.  As an example of what I mean, if I have a student who is about to learn formulas for the... read more

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A metallurgist has one alloy containing 36% aluminum and another containing 68% aluminum. How many pounds of each alloy must he use to make 47 pounds of a third

A metallurgist has one alloy containing 36% aluminum and another containing 68% aluminum. How many pounds of each alloy must he use to make 47 pounds of a third alloy containing 46% aluminum?...

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