HotelInfantesAgres - Tempat Tanya Jawab Pelajaran & Ilmu Pengetahuan Logo

In Matematika / Sekolah Menengah Atas | 2025-07-03

jika seseorang berjalan kecepatan 14km/jam dan jika menempuh 20 km lebih panjang jika di banding dengan ketika dia berjalan 10km/jam. jarak yang sebenarnya dia tempuh adalah?

Asked by Sujianto9194

Answer (4)

Line pass to points: (-5;0) and (0;-5)
So:
\left|\begin{array}{ccc}x&y&1\\-5&0&1\\0&-5&1\end{array}\right|=0\\
\\
25+5y+5x=0\\
\\
5+y+x=0\\ y=-x-5\\
\\
slope=-1 \ \ \(coeficient \ of \ "x")

Answered by Ryan2 | 2024-06-10

For each unit of progress toward the right ... as 'x' increases ... the line drops one unit.
Its slope is -1.

Answered by AL2006 | 2024-06-10

To find the slope of a line passing through the points (-5, 0) and (0, -5), we use the formula m = x 2 ​ − x 1 ​ y 2 ​ − y 1 ​ ​ . This gives us a slope of − 1 , indicating that the line descends as it moves from left to right. A slope of − 1 means that for each unit increase in x, y decreases by 1 unit.
;

Answered by Ryan2 | 2024-12-24

Penjelasan dengan langkah-langkah:(x + 20) / 14 = x / 1010x + 200 = 14x200 = 14x - 10x200 = 4x200/4 = Xx = 50 meterjarak jika dengan kecepatan 14 km/jam adalah 70 meterjarak jika dengan kecepatan 10 km/ jam adalah 50 meter

Answered by najlan4j4 | 2025-07-03