Of the 800 people at a concert, 42% of them were teenagers. How many teenagers were at the concert

336 of them were teenagers

There are 336 teenagers at the concert.

Step-by-step explanation:

You are welcome

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

step-by-step explanation:

oh the deck is the size of my dic k so about 320 inches hope u get my dic k as the answer