Suppose that y varies jointly with w and x and inversely with z and y = 175 when w = 5, x = 20 and z = 4. write the equation that models the relationship. then find y when w = 2, x = 24 and z = 6.

Given: ae ≅ ce ; de ≅ be prove: abcd is a parallelogram. we have that ab || dc. by a similar argument used to prove that △aeb ≅ △ced, we can show that △ ≅ △ceb by. so, ∠cad ≅ ∠ by cpctc. therefore, ad || bc by the converse of the theorem. since both pair of opposite sides are parallel, quadrilateral abcd is a parallelogram.