Awoman just purchased a high-speed copier for her office and wants a service contract on the copier she’s considering some sources for the contract the a-1 copier sales and service company charges $25 a month plus 4 cents a copy. office copier depot charges $58 a month but only 2.5 cents a copy. assuming the prices do not change, how many copies would the woman need to make for the monthly cost of both plans to be the same

22 and 22

step-by-step explanation:

10 plus 12 equals 22.

12 plus 10 also equals 22 because regardless of what order they're in, they're gonna equal the same thing.

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