a unit rate is a ratio that has a denominator of 1 a unit rate is also called a unit ratio they mean the same thing frac 5 4 and $ 3 8 and $ 40 mbox to 10 are ratios but they are not unit ratios frac 1 25 1 and $ 0 375 1 and $ 4 mbox to 1 are unit ratios
Learner's definition of SKEW. [+ object] 1. : to change (something) so that it is not true or accurate. They were accused of skewing the facts to fit their theory. A few unusual cases may have skewed the data. [=may have made the data show something that is not normal or typical]
In three-dimensional geometry, skew lines are two lines that do not intersect and are not parallel. A simple example of a pair of skew lines is the pair of lines through opposite edges of a regular tetrahedron. Two lines that both lie in the same plane must either cross each other or be parallel, so skew lines can exist only in three or more dimensions. Two lines are skew if and only if they are not coplanar.