Jack’s truck had used 30 gallons of fuel from a 50 gallon tank. What percentage was used? *

anwers: is 15 because I did 30 percent of 50

geometry: triangles

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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

if the probability is 1/12, 75 people will receive a $25 gift card

step-by-step explanation: