Matematika Sekolah Menengah Pertama tolonggggggggg
dibantu ☺​

tolonggggggggg
dibantu ☺​

gunakan rumus perbandingan berbalik nilai

2 = 15 menit

x = 10 menit

2 * 15 = 10 x

30 = 10x

x = 3 mesin (b)

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