Roboguru

lbu memiliki bak mandi berbentuk kubus yang berisi penuh air. Bak tersebut menampung 125 liter air. Sebanyak  bagian dari volume air digunakan untuk mandi. Berapa ketinggian air di bak sekarang?

Pertanyaan

lbu memiliki bak mandi berbentuk kubus yang berisi penuh air. Bak tersebut menampung 125 liter air. Sebanyak begin mathsize 14px style 2 over 5 end style bagian dari volume air digunakan untuk mandi. Berapa ketinggian air di bak sekarang?

Pembahasan Soal:

begin mathsize 14px style V o l u m e blank k u b u s equals 125 space space space space space space space space space space s cross times s cross times s equals 125 space space space space space space space space space space space space space space space space space space space space s cubed equals 125 space space space space space space space space space space space space space space space space space space space space space space s equals cube root of 125 space space space space space space space space space space space space space space space space space space space space space space s equals 5 blank d m end style

begin mathsize 14px style V o l u m e blank a i r blank y a n g blank d i g u n a k a n equals 2 over 5 cross times V o l u m e blank a i r blank p e n u h blank space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals 2 over 5 cross times 125 space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals 50 blank l i t e r end style

begin mathsize 14px style V o l u m e blank a i r blank t e r s i s a equals blank V o l u m e blank a i r blank p e n u h minus V o l u m e blank a i r blank y a n g blank d i g u n a k a n space space space space space space space space space space space space space space space space space space space space space space space space equals 125 minus 50 space space space space space space space space space space space space space space space space space space space space space space space space equals 75 blank l i t e r end style

begin mathsize 14px style V o l u m e blank a i r blank t e r s i s a equals 75 blank l i t e r space space space space space space space space space space space space space space space space space s cross times s cross times t equals 75 blank l i t e r space space space space space space space space space space space space space space space space space 5 cross times 5 cross times t equals 75 blank l i t e r space space space space space space space space space space space space space space space space space space space space space space space 25 blank t equals 75 blank l i t e r space space space space space space space space space space space space space space space space space space space space space space space space space space space space t equals 75 over 25 space space space space space space space space space space space space space space space space space space space space space space space space space space space space t equals 3 blank d m  end style

 

Maka ketinggian air bak sekarang adalah 3 dm

Pembahasan terverifikasi oleh Roboguru

Terakhir diupdate 01 April 2021

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