I am so confused i need help

40

Step-by-step explanation:

There is enough information, so D is not an answer.

10 is far to low. The number is roughly 40. So A is not the answer.

16/20 = .80 that recommended the tooth paste. If you stopped there, 40 would be your answer.  But they took one more survey.

24/30 = .80

So both groups come back with an amount that = 0.8

That means that you should pick 40 as your answer.

4

step-by-step explanation:

6 (donuts) divided by 3 is 2.

so 2/3 means 2 times 2, which is 4/6.

you get two and your friend gets four.

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+

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