1 Door Thickness: Most standard interior doors are 1 3/8 inches thick, and the door is slightly beveled to make the closure into the jamb. 2  Buy the correct door hardware for the application so the door handles for passage or privacy have the correct back set and bore. Door Thickness: Most standard interior doors are 1 3/8 inches thick, and the door is slightly beveled to make the closure into the jamb. 2  Buy the correct door hardware for the application so the door handles for passage or privacy have the correct back set and bore.
State whether the relationship between the variables in the table is a direct variation, an inverse variation, or neither. If it is a direct or inver...
In the following equation y varies directly with x, and k is called the constant of variation: Another form of variation is the inverse variation which works when there is a relationship between two variables in which the product is a constant.When one variable increases the other decreases in proportion so that the product is unchanged.hen we have a variation where one quantity varies as the product of two or more other quantities we have what is called joint variation: Videolesson: State whether each equation represents a direct, inverse or joint variation: xy=7 y=xz x/y=4. 1  Pre-Algebra. 2  Algebra 1. 3  Algebra 2. 4  Geometry. 5  Sat.