Translate the statement of variation into an equation and use k as the constant of variation. D varies jointly as l and w .
A) $D = \frac { k w } { l }$
B) l = k Dw
C) D = k lw
D) D = lw
E) $D = \frac { k } { l w }$

Question

Quizplus · Accepted Answer

The statement "D varies jointly as l and w" can be translated into the equation D = k lw, where k is the constant of variation. This means that D is directly proportional to both l and w, and the constant of proportionality is k. Choice C represents this equation with k as the constant of variation, making it the best choice.

Translate the Statement of Variation into an Equation and Use D=kwlD = \frac { k w } { l }D=lkw​

Translate the Statement of Variation into an Equation and Use $D = \frac { k w } { l }$