Kim read b books last month. this month she read 24 books. which expression shows the total number of books kim has read in the past two months? a. b + 24 b. b ÷ 24 c. b × 24 d. b - 24

The answer should be A. b + 24

Hope this helps!

geometry: triangles

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lessons

answers archive

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

236 cm 16 time 12 = 192

6 times 7 = 42

192+42