1. Dalam waktu 10 hari sebuah rumah dapat dikerjakan oleh 15 orang. Berapakah banyaknya pekerja jika rumah tersebut selesai dalam waktu 30 hari?
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Jawaban:
5 orang
Penjelasan dengan langkah-langkah:
15/x = 10/30
15 × 10 = 30 × x
150 = 30x
x = 150/30
x = 15/3
x = 5 pekerja
[tex]\large{ \colorbox{lavender}{ \purple{ \boxed{ \green{ \star{ \purple{ \rm{«Penyelesaian \: Soal»: \green{ \star}}}}}}}}}[/tex]
[tex] \: [/tex]
[tex]\huge{ \purple{ \mathfrak{♡Pembahasan♡ : }}}[/tex]
[tex] \: [/tex]
[tex] \: [/tex]
[tex] \: \: \: \: \: \: \: \: \: \: \: \: \: \colorbox{yellow}{ \sf{Banyak~Pekerja}}[/tex]
[tex]\sf{x}[/tex] = [tex]\sf{\dfrac{15~orang}{30~hari} × 10~hari}[/tex]
[tex]\sf{x}[/tex] = [tex]\sf{\dfrac{15}{30} × 10}[/tex]
[tex]\sf{x}[/tex] = [tex]\sf{0,5 × 10}[/tex]
[tex]\sf{x}[/tex] = [tex]\underline{\boxed{\red{\bf{5}}}}[/tex] Orang Pekerja
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•°• Jadi, banyaknya pekerja jika rumah tersebut selesai dalam 30 hari adalah [tex]\underline{\boxed{\red{\bf{5}}}}[/tex] Orang Pekerja
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[tex] \: [/tex]
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