The kwon family has a rainwater catchment system they use to water their garden. the storage tank is 80 inches deep. after 3 hours of rain, the depth of water in the tank is 37 inches. after 5 hours, the depth is 60 inches. if the rain continues to fall at the same rate, how many hours will it take to fill the tank? round your answer to the nearest tenth.

the answer on e2020 is

10

4/5

3/5

4/3

step-by-step explanation:

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=

side j'k'=distance between j' and k'

=

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl