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In Matematika / Sekolah Menengah Atas | 2025-07-02

perbandingan antara usia Andi dan Budi adalah 3 banding 4 Jika jumlah usia mereka adalah 56 tahun maka usia Budi adalah​

Asked by auliamega09

Answer (4)

5x² + 5x + nothing Ax² + Bx + C
A = 5 B = 5 C = 0
Quadratic formula:
x = (1/2A) times [ -B plus and minus √(B²-4AC) ]
B² - 4AC = 25 - 4(5)(0) = 25
-B plus and minus √25 = -5 plus and minus 5 = -10 and zero.
(1/2A) times (-10 and zero) = (1/10) times (-10 and zero) = -1 and zero
x = 1 and x = 0
What is that '6' doing in there ? Where does it belong ? Did you copy the problem correctly ?

Answered by AL2006 | 2024-06-10

The solutions to the equation 5 x 2 + 5 x − 6 = 0 are approximately x ≈ 0.7 and x ≈ − 1.7 . These values are obtained by applying the quadratic formula after rearranging the equation into standard form. The discriminant showed two real and distinct solutions.
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Answered by AL2006 | 2024-12-24

Jawab:umur A : B = 3 : 4Jadi, umur Andi kelipatan 3, sedangkan umur Budi kelipatan 4. Tapi, kita tidak tahu berapa kali lipat (x), tapi kita tahu bahwa kalau umur A = 3x, berarti umur B = 4x -> 3x: 4x = 3:4    jadi x selalu samaumur A + umur B = 3 x + 4x = 567x = 56x = 8Umur Budi= 4x = 4 x 8 = 32

Answered by grace8 | 2025-07-02

Penyelesaianandi =3x budi=4x[tex]3x + 4x = 56[/tex][tex]7x = 56[/tex][tex]x = 8[/tex][tex]4x = 4 \times 8[/tex][tex]= 32[/tex]usia budi = 32 taun

Answered by vinganzbeut | 2025-07-02