which missing number makes the following exlression equivalent 8(3x -5) x please explain

24x-40

Step-by-step explanation:

you use the distributive property to distribute 8 to 3x and -5

3x(8)= 24x   and    -5(8)= -40

i believe the answer is letter c) 8

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+

25.45584