Which expression can be used to find 80% of 120? A.(0.8) (24)
B.(0.2) (120)
C.(0.8) (120)
D.(0.2) (24)
PLEASE HELP I'M BEGGING MY TEST IS TIMED

C.(0.8) (120)

Step-by-step explanation:

0.8 = 80%

of means multiply, therefore, 0.8 x 120 equals 80% of 120.

C. (.8)(120)

Step-by-step explanation:

that is how you find percent of a number

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

7.3

step-by-step explanation: