Jawaban:
sebulan yang lalu berat badan adik 8,5 kg. dua minggu kemudian naik lagi 0,45 kg. namun kemarin turun 1 2/5 kg. berat badan adik skrg adalah ...
[tex] \sf 8,5 \: kg+ 0,45 \: kg - 1 \frac{2}{5} \: kg[/tex]
[tex] \sf = \frac{85}{10} kg + \frac{45}{100}kg - \frac{7}{5} kg[/tex]
[tex] \sf = \frac{85 \times 10}{10 \times 10}kg + \frac{45}{100}kg - \frac{7 \times 20}{5 \times 20}kg [/tex]
[tex] \sf = \frac{850}{100} kg + \frac{45}{100} kg - \frac{140}{100} kg[/tex]
[tex] \sf = \frac{895}{100} kg - \frac{140}{100} kg[/tex]
[tex] \sf = \frac{755}{100} kg[/tex]
[tex] \sf = \red{7,55 \: kg}[/tex]
'조슈아' (Svt)
8,5 + 0,45 - 1 2/5
= 85/10 + 45/100 - 7/5
= 17/2 + 9/20 - 7/5
= 170/20 + 9/20 - 28/20
= 179/20 - 28/20
= 151/20
= 7,55 kg
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Jawaban:
Penyelesaian :
sebulan yang lalu berat badan adik 8,5 kg. dua minggu kemudian naik lagi 0,45 kg. namun kemarin turun 1 2/5 kg. berat badan adik skrg adalah ...
Berat badan adik sekarang
[tex] \sf 8,5 \: kg+ 0,45 \: kg - 1 \frac{2}{5} \: kg[/tex]
[tex] \sf = \frac{85}{10} kg + \frac{45}{100}kg - \frac{7}{5} kg[/tex]
[tex] \sf = \frac{85 \times 10}{10 \times 10}kg + \frac{45}{100}kg - \frac{7 \times 20}{5 \times 20}kg [/tex]
[tex] \sf = \frac{850}{100} kg + \frac{45}{100} kg - \frac{140}{100} kg[/tex]
[tex] \sf = \frac{895}{100} kg - \frac{140}{100} kg[/tex]
[tex] \sf = \frac{755}{100} kg[/tex]
[tex] \sf = \red{7,55 \: kg}[/tex]
'조슈아' (Svt)
8,5 + 0,45 - 1 2/5
= 85/10 + 45/100 - 7/5
= 17/2 + 9/20 - 7/5
= 170/20 + 9/20 - 28/20
= 179/20 - 28/20
= 151/20
= 7,55 kg