Question

Maaf Aku Undurkan 2 Jam Sebelumnya
最も賢い答えを得たい
Mau Dapat Jawaban Tercedas
Siapa Cepat Dia Dapat
Jam 12 Menantimu
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1. 1/2 x 8% : 0,71
2. 1/5 x 20% : 0,95
3. 7/9 x 91% + 9,75
4. 2/10 + 30% + 8,74
5. 2/7 + 20% - 1,27
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I Wait You

Answer 1

PENYELESAIAN

SOAL 1

1/2 × 8% : 0,71

= 1/2 × 8/100 : 71/100

= 1/2 × 4/50 × 100/71

= 1/2 × 2/25 × 100/71

= 200/3.550

= 4/71

SOAL 2

1/5 × 20% : 0,95

= 1/5 × 20/100 : 95/100

= 1/5 × 4/20 ÷ 19/20

= 1/5 × 2/10 × 20/19

= 1/5 × 1/5 × 20/19

= 20/475

= 4/95

SOAL 3

7/9 × 91% + 9,75

= 7/9 × 91/100 + 975/100

= 7/9 × 91/100 + 195/20

= 7/9 × 91/100 + 39/4

= 673/900 + 39/4

= 673 + 8.775/900

= 9.448/900

= 4.724/450

= 2.362/225

= 10 112/225

SOAL 4

2/10 + 30% + 8,74

= 1/5 + 30/100 + 874/100

= 1/5 + 6/20 + 437/50

= 1/5 + 3/10 +  437/50

= 10 + 15 + 437/50

= 462/50

=  9 12/50

= 9 6/25

SOAL 5

2/7 + 20% - 1,27

= 2/7 + 20/100 - 127/100

= 2/7 + 4/20 - 127/100

= 2/7 + 1/5 - 127/100

= 200 + 140 - 889/700

= -549/700