Jamie has just completed her second semester in college. She earned a grade of Upper C in her 3-hour topology course, a grade of Upper D in her 2-hour psychology course, a grade of Upper B in her 3-hour physics course, and a grade of Upper F in her 4-hour creative writing course. Assuming that A equals 4 points, B equals 3 points, C equals 2 points, D equals 1 point, and F is worth no points, determine Jamie's grade-point average for the semester

step-by-step explanation: i dont

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

a

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