Perhatikan diagrm garis berikut ini!
Diagram garis di atas dimulai dari angka 40 pada sumbu tegak yang menunjukkan kapasitas baterai di awal yaitu 40%.
Dengan demikian persentase kapasitas ponsel yang tersisa saat pengisian dimulai adalah 40%.
Oleh karena itu, jawaban yang benar adalah A
Persentase kapasitas ponsel yang tersisa saat pengisian dimulai adalah 40% dan jika baterai dalam keadaan habis total (0%) maka butuh waktu 50 menit hingga ponsel terisi penuh
Penjelasan dengan langkah-langkah:
Soal b dapat diselesaikan dengan cara permisalan.
Untuk mengisi 60% baterai, dibutuhkan waktu 30 menit, bisa ditulis dengan 60 ⇔ 30
lalu, untuk mengisi 100% baterai, butuh waktu n menit, bisa ditulis dengan 100 ⇔ n
60 ⇔ 30
100 ⇔ n
lalu dikali silang, 60 x n = 30 x 100
60n = 3000
n = 3000/60
n= 50
Jadi, butuh waktu 50 menit untuk mengisi ponsel dari 0% menuju 100%
Pelajari lebih lanjut tentang grafik pada matematika pada //brainly.co.id/tugas/1488295
#BelajarBersamaBrainly
Oleh kkaktri 26 Agu, 2021
Ani sedang mengisi daya ponsel miliknya (Soal AKM Kelas 8)~ Soal AKM Numerasi Level Pembelajaran IV (Kelas VIII) Aljabar. Soal ANBK ( Asesmen Nasional Berbasis Komputer ).
a. Persamaan dan Pertaksamaan
1. Pilihan Ganda (Menyelesaikan pertaksamaan linier 1 variabel atau sistem persamaan linear 2 variabel.
Masyarakat sudah dimudahkan dengan tersedianya berbagai layanan angkutan seperti KRL (Kereta Rel Listrik), MRT Jakarta (Moda Raya Terpadu Jakarta), maupun transportasi online. Biaya yang ditarifkan menyesuaikan dengan jarak yang ditempuh pengguna layanan. Melalui mesin pencarian maps, seseorang dapat melihat berbagai pilihan untuk menuju suatu tempat. Seperti tabel di bawah ini.
Tarif KRL untuk 1-25 km pertama adalah Rp3.000,00 dan + Rp1.000,00 tiap 10 km berikutnya.
Adi akan melakukan perjalanan dari Rawa Buntu menuju Fatmawati. Ada berapa pilihan perjalanan yang berbeda yang bisa diambil Adi dengan menggunakan informasi di tabel?
A. 2
B. 3
C. 4
D. 5
Jawab : C
b. Relasi dan Fungsi (termasuk Pola Bilangan)
1. Uraian (Memahami pola pada barisan bilangan dan konfigurasi obyek).
Gedung Pertunjukan
Dalam suatu gedung pertunjukan terdapat 9 baris kursi. Pada baris pertama terdapat 8 kursi, baris kedua 12 kursi, baris ketiga 11 kursi, baris keempat 15 kursi, baris kelima 14 kursi, dan seterusnya mengikuti pola yang sama.
Berapa banyak kursi pada baris paling belakang?
Jawab : 20. pola bilangan tingkat 2 dengan selisih +3 sehingga dapat dihitung secara manual dengan barisan ke 9 kursi yaitu 20.
2. Uraian (Memahami fungsi linier dan grafiknya, serta sifat-sifatnya).
Ani sedang mengisi daya ponsel miliknya. Berikut merupakan grafik kapasitas baterai (persen) vs waktu (menit) dari pengisian ponsel milik Ani.
Berapa persentase kapasitas ponsel yang tersisa saat pengisian dimulai?
Jawab : 0,4.
Ani sedang mengisi daya ponsel miliknya. Berikut merupakan grafik kapasitas baterai (persen) VS waktu (menit) dari pengisian ponsel milik Ani. Jika baterai dalam keadaan habis total (0%) maka berapa menit waktu yang dibutuhkan Ani hingga ponsel terisi penuh?
Jawab :
Diketahui
menit ke-0 = 40%
menit ke-5 = 50%
menit ke 10 = 60%
menit ke 15 = 70%
menit ke 20 = 80%
menit ke 25 = 90%
menit ke 30 = 100%
Ditanyakan
jika baterai 0%, berapa menit waktu yang dibutuhkan Ani hingga ponsel terisi penuh?
Penjelasan
Pola yang didapat pada konteks waktu :
f(1) = 0 menit
f(2) = 5 menit
selisih :
f(2) - f(1) = 5 menit - 0 menit
f(2) - f(1) = 5 menit
begitupun dengan selisih f(3) san f(4)
Pola yang didapat pada konteks daya isi :
f(1) = 40%
f(2) = 50%
f(2) - f(1) = 50% - 40%
f(2) - f(1) = 10%
Artinya, dalam waktu 5 menit baterai akan bertambah sebanyak 10%. Maka, untuk terisi penuh dengan keadaan daya 0%, dibutuhkan waktu :
10% / 5 menit = 100% / x
2% / menit = 100% / x
x = 100% / 2% / menit
x = 50 menit
c. Rasio dan Proporsi
1. Uraian (Memecahkan masalah aritmetika sosial yang terkait dengan rasio/persentase).
Halaman belakang sebuah rumah akan dibuat taman. Pengerjaan taman tersebut memerlukan waktu 12 hari dengan 4 orang pekerja. Agar pekerjaan taman dapat diselesaikan selama 8 hari, berapa orang tambahan pekerja yang diperlukan?
Jawab : 2 orang. Perbandingan berbalik nilai. 12 hari dikerjakan 4 orang, maka untuk 8 hari. 12 : 8 = x : 4 ------ x = 6. Sehingga membutuhkan tambahan 2 orang.
demikianlah jawaban dari soal :Ani sedang mengisi daya ponsel miliknya (Soal AKM Kelas 8), Semoga bermanfaat
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