The proportional relationship between the number of songs Sadie downloads, s, and the total cost in dollars and cents, c, can be represented by the equation c=0.75sc=0.75s. What is the constant of proportionality from the number of songs downloaded to the total cost?

15 batches are the most you can make

step-by-step explanation:

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+

25.45584

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