Elang membeli 1/3 kg cabe seharga 4.200 dan 4/3 kg garam seharga 8000. Ali membeli 9/2 kg cabe dan 27/4 kg garam. jika Ali membayar 100.000 maka kembalianya
Matematika
ayy03
Pertanyaan
Elang membeli 1/3 kg cabe seharga 4.200 dan 4/3 kg garam seharga 8000. Ali membeli 9/2 kg cabe dan 27/4 kg garam. jika Ali membayar 100.000 maka kembalianya
1 Jawaban
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1. Jawaban dewa251202
1/3 kg cabe = 4.200
1 kg cabe = 4.200 × 3 = Rp12.600,00
4/3 kg garam = 8.000
1 kg garam = 8.000 × 3/4 = Rp6.000,00
9/2 kg cabe + 27/4 kg garam
= 12.600 × 9/2 + 6.000 × 27/4
= 56.700 + 40.500
= Rp97.200,00
Kembalian
= 100.000 - 97.200
= Rp2.800,00