girls= g boys=b 50=g+b Now we know that 30% of the girls are younger than 12. That's already half to answer... We also know that 40% of the boys are OLDER than 12, which leaves 60% of the boys YOUNGER than 12. This makes us know that 30%+60% out of 50 kids are younger than 12 30%+60%=90%
90% of the kids are younger than 12 90% of 50 is 45
ANSWER: 45 kids are younger than 12
To find the number of children younger than 12 at the book fair, subtract the number of boys older than 12 from the total number of children. ;
To find the number of children younger than 12 at the book fair, we first express the number of girls and boys in terms of their percentages. The total number of children younger than 12 can be calculated as 15 + 0.3 b , where b is the number of boys.
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Jawaban:persatuan umat Islam setelah Perang Saudara, perluasan wilayah yang pesat, sistem pemerintahan yang terorganisir, dan munculnya tokoh-tokoh kuat seperti Muawiyah bin Abi Sufyan.maaf kalo salahPenjelasan:1. Krisis politik pada akhir masa Khulafaur Rasyidin, terutama setelah terbunuhnya Khalifah Utsman bin Affan dan konflik yang timbul antara Ali bin Abi Thalib dan Muawiyah. 2. Peran penting Muawiyah bin Abu Sufyan dalam menyatukan umat Islam setelah perjanjian damai (Ammul Jamaah) dengan Hasan bin Ali, serta kemampuannya dalam membangun stabilitas dan konsolidasi kekuasaan. 3. Perluasan wilayah kekuasaan yang pesat, menjadikan Islam semakin dikenal luas dan memberikan kontribusi besar terhadap perkembangan peradaban Islam.terima kasih maaf kalau salah