A pair of sneakers originally cost $200 but it was on sale for $160. What percent of the discount was given?

answer:

c. the third graph

12.5 feet

step-by-step explanation:

step-by-step explanation:

6.48/4 4 goes into 6.48 1.62 times

geometry: triangles

solvers

lessons

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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+

25.45584