13x + 7y - 8x + 20y answer i need this for my work hurry

5x +27y

Step-by-step explanation:

13x + 7y - 8x + 20y

lets group terms according to variable

5x +27y

step-by-step explanation:

a rhombus is a parallelogram enjoying his symmetry.

geometry: triangles

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call the larger triangle abc

then the smaller triangle cde is similar to abc (all angles are equal, aaa).  

ab is the side that is 36, and we wish to find de, the side corresponding to ab

area_cde = area_abc - area_cde --> area_abc / area_cde = 2

let x=length of de

ratio of areas = (ratio of sides)^2

+2+=+%2836%2fx%29%5e2+

+2+=+1296%2fx%5e2+

++x%5e2+=+1296%2f2+=+648+

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