emily went to the electronic store with a 2-% off coupon and a $15 off coupon. if emily can only use one coupon which coupon should emily use to save the most money if she wants to buy the computer speakers for $50 justify your answer by showing the discounted price for each equation

geometry: triangles

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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

y -5 = (-1/4)(x + 8)

step-by-step explanation: