Please help A submarine is 30 feet below the surface of the water and descends 5 feet deeper every minute. How many minutes will it take for the submarine to be located 325 feet below the surface? Write and solve an equation.

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step-by-step explanation:

the answer

b. they are parallel and will never intersect.

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