| Recent Answers from Steve Holleran |
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2008-08-31 Quadratic equation: Hi Hershil, 1) Okay, the equation we get is x(x - 8) + (x-2)(x-3) = 175 (Leave units in cents) x^2 - 8x + x^2 - 5x + 6 = 175 2x^2 - 13x - 169...
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2008-07-28 Compounded Interest: Hi Rodney, I believe the formula you want is B = P(1 + (r/n))^(nt) Where B= balance after t years P = original principal r = annual interest rate as a decimal...
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2008-07-21 Number-related problems: Hi Jenina, 1. Okay, we have x + y = 42 x - y = 18 so let's add these equations: ------------- 2x = 60 so x = 30, then y = 12 2...
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2008-05-09 Colored M&Ms (matrecis): Hi Taylor, Sorry it took so long to get back to you -- I got caught up in Mother's day weekend, and lost track of the questions I had. I also wonder what a matrix system has to do with the problem...
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2008-05-07 Algebra 1: Hi Donna, Okay, the mean is basically the average of the three expressions, so we have to add them, then divide by 3: (4x^2 - 6) + (2x^2 + 3x) + (-13x + 3) = 6x^2 - 10x -3 Then dividing this...
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