Clay bought two water pumps to use to drain a 1200 gallon goldfish pond in his backyard. one pump will pump water at the rate of 100 gallons per hour. the other will pump water at the rate of 60 gallons per hour. how much time should be allowed to drain the goldfish pond using both pumps? (round your answer to the nearest tenth.)

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step-by-step explanation:

you never say the total so we cant find the percentage used for petrol

step-by-step explanation:

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

answer: the answer is 110