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2008-09-05 Basic Math - math: Hello, Alondra. We'll use 25%. Step 1 is to move the decimal point two places to the left, making it a decimal. 25.0% changes to .25. .25 is the same as 25 hundredths, or 25/100, or after reducing...
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2008-09-03 Algebra - math: First you have to find the equation of the line perpendicular to y=2x+3 and going through (5,2). That line is x+2y=9. Then you find the intersection of the two lines which is (3/5,21/5). So the distance...
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2008-09-03 Geometry - Volume - Irregular Shapes: Hi John, Using the eraser tip of a pencil or something, push the peanut shell down to the point where the shell is completely submerged, but none of the eraser is. Alternatively, grab a weight of...
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2008-09-03 Basic Math - 3rd grade math: Hello, Gordon. The only websites I can think of immediately are quickmath.com and Ask Dr. Math. Dr. Math's website can be found at http://mathforum.org/dr.math/ Ask Dr. Math is an interactive...
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2008-09-02 Geometry - Volume - Irregular Shapes: Hi John, Use the water displacement method. Pour some water in a graduated container and measure the water level. Put the object in the water, ensuring it is completely submerged. Measure the increase...
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