Can someone explain thes three questions and me solve hem

15. 200 - (8 * 18) = 56$

16. 8 - (5 * 3) = -7 °

17. 325 - (25 * 6) = 175$

Step-by-step explanation:

all three question have the same idea so I'll explain the first one,

you have 200$ and you subtract 18$ from them 8 times:

200 - 18 - 18 -18

which equals 200 - (18*8) = 56

answer: (x)+4-5=-3

step-by-step explanation:

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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