Yousef typed a 36-word paragraph in 2/3 minute. What is his typing speed, in words per minute?

answer:

c. the third graph

lockers 1, 4, 9, 16, 25, 40, and 49 are open

i ran through it by the other answer is wrong

geometry: triangles

solvers

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

13.46

step-by-step explanation:

16.80 x .20 = 13.46