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2008-11-12 Multiple Solutions: Regarding your explanation, they make sense if you delete "2% x 5" and "2% x 8" from (1) and (2) respectively. This equation has the form a*X+b*Y=c, where a, b and c represent (known) constant values...
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2008-11-11 Multiple Solutions: Hi Kenneth, I am not sure how you pulled the numbers and the relationship of "4% X a + 2% X b = 26" with the original question. The problem has a unique solution, because we have to find (two amounts)...
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2008-11-10 problem solving: What applies to the variables applies to the units as well. Since v=x/t, x has unit measured in "meter", t has unit measured in "second", the velocity v has unit measured in "meter/sec". Look at t=s/p...
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2008-10-22 problem solving in college: Jerry There are many web pages on this topic. Most of them have applets which allow the user to specify the parameters of an equation and see the graph instantly. Since there is no way for me to draw...
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2008-10-22 Math: Hi Carolyn In mathematics, the mode is the number that appears most often in a list of elements. e.g., 3 is the mode in {1,2,1,3,3,1,0,3,2,3,1,3,0}. This question does not make much sense since everything...
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