Mia and her family went to dinner, and the bill, including tax, came to $54.65. Mia suggested giving the server a
gratuity of about 20 percent of the bill.
If they give a gratuity of 20 percent, what would be the tip rounded to the nearest dollar?
if they give a gratuity of 20 percent, rounded to the nearest dollar, what is the total cost of the dinner, including the
tip

the image of (6, 9) under a dilation is (4, 6). the scale factor is

b

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