Question

Please solve number 80

Answer 1

option D. 20 cm

Explanation:

step 1

Find the volume of the water

The volume of the water is equal to

`V=LWH`

we have

`L=60\ cm\\W=40\ cm\\H=50\ cm`

substitute

`V=(60)(40)(50)`

`V=120,000\ cm^3` ---> volume of water

step 2

Find the deep of the water, if the tank is returned to its horizontal position

we have

`V=120,000\ cm^3`

`L=100\ cm\\W=60\ cm\\H=?\ cm`

where

H is the deep of the water

substitute in the formula of volume

`120,000=(100)(60)(H)`

solve for H

`120,000=6,000)(H)`

`H=20\ cm`