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To begin this question, we want to isolate the term containing the s, i.e. have the term containing the s by itself on one side of the equality. We do this by subtracting 8 from both side...

For questions regarding enlargements of shapes, it's sometimes easier to consider one dimension at a time. So for this example, let's first consider what the area of the rectangle would be if we just enla...

Follow these steps: 1) Use the original price given, multiplying it by [(100-first discount percentage) over 100] This is done to get the discounted price when the discount is applied once. 2) Us...

First look at the volume of a cone, V = (piRH)/3. It is clear the volume of our conical frustum will be that of a large cone minus that of a smaller one on top. Also note that the smaller cone wi...

Whenever we have two equations with two unknowns (x and y) to solve simultaneously, we can try to substitute one equation into the other. If we were to multiply every term in equation 1 by 1.5, then we wo...