Maaf Aku Undurkan 2 Jam Sebelumnya 最も賢い答えを得たい Mau Dapat Jawaban Tercedas Siapa Cepat Dia Dapat 2 Menit Menantimu _______________________ 1. 1/2 x 20% : 7,31 2. 1/5 x 21% : 2,34 3. 21 x 92% + 4,75 4. 4/3 + 9% + 8,74 5. 7/5 + 35% - 7,23 ______________________ I Wait You
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PENYELESAIAN
SOAL 1
¹/₂ × 20% : 7,31
= 1/2 × 20/100 : 731/100
= 1/2 × 4/20 × 100/731
= 1/2 × 2/10 × 100/731
= 1/2 × 1/5 × 100/731
= 1/10 × 100/731
= 100/7.310
= 20/1.462
= 10/731
SOAL 2
1/5 × 21% : 2,34
= 1/5 × 21/100 × 100/234
= 1/5 × 21/100 × 50/117
= 1.050/58.500
= 21/1.170
= 7/390
SOAL 3
21 × 92% + 4,75
= 21/1 × 92/100 + 475/100
= 21/1 × 46/50 + 95/50
= 21/1 × 23/25 + 19/10
= 483/25 + 19/10
= 966 + 95/50
= 1.061/50
= 21 11/50
SOAL 4
4/3 + 9% + 8,74
= 4/3 + 9/100 + 874/100
= 4/3 + 9/100 + 437/50
= 400 + 27 + 2.622/300
= 3.049/300
= 10 49/400
SOAL 5
7/5 + 35% - 7,23
= 7/5 + 35/100 - 723/100
= 7/5 + 7/20 - 723/100
= 140 + 35 - 723/100
= -548/100
= -274/50
= -137/25
= 5 -262/25