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Ayah menyiram tanaman menggunakan selang dengan de...

Ayah menyiram tanaman menggunakan selang dengan debit begin mathsize 14px style 250 space bevelled cm cubed over menit end style. Jika ayah menyiram tanaman selama begin mathsize 14px style begin inline style 1 half space end style jam end style, berapa begin mathsize 14px style dm cubed end style air yang dipakai?

Jawaban:

begin mathsize 14px style 1 space dm cubed equals 1.000 space cm to the power of 3 space space space space space space space space space space space space space space space space space space space space space space end exponent space space space space space space space space space space space space space space space 1 space jam equals 60 space menit 1 space cm cubed equals fraction numerator 1 over denominator 1.000 end fraction space dm to the power of 3 space end exponent 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 1 half space jam equals 1 half cross times space 60 space menit space space space space space space space space space space space 250 space cm cubed equals 250 cross times fraction numerator 1 over denominator 1.000 end fraction space dm cubed 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 30 space menit space space space space space space space space space space space space space space space equals 0 comma 25 space dm cubed volume equals debit cross times waktu space space space space space space space space space space space equals fraction numerator 250 space cm cubed over denominator menit end fraction cross times 1 half jam space space space space space space space space space space space equals fraction numerator 0 comma 25 space dm cubed over denominator menit end fraction cross times 30 space menit space space space space space space space space space space space equals 7 comma 5 space dm cubed space space space space space space space space space space space end style  Jadi, volume air yang dipakai adalah begin mathsize 14px style 7 comma 5 space dm cubed end style.

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