Showing posts with label Basic Math. Show all posts
Showing posts with label Basic Math. Show all posts
Friday 28 February 2014
Monday 24 February 2014
Equation and formula
Equation
Equation : two things are equal
Example:
x/2 + 7 = 0
x + 2 = 6
Formula
Formula: special equation that shows the relationship between different variables.
Formula have a subject, that is the single variable (usually on the left of the "=") that everything else is equal to.
Formula can be rearranged so that another variable is the subject.
Example:
V = lwh
w = V / hl
Equation : two things are equal
Example:
x/2 + 7 = 0
x + 2 = 6
Formula
Formula: special equation that shows the relationship between different variables.
Formula have a subject, that is the single variable (usually on the left of the "=") that everything else is equal to.
Formula can be rearranged so that another variable is the subject.
Example:
V = lwh
w = V / hl
Saturday 8 February 2014
Kalkulasi waktu
1. Libur dari tanggal 13 sampai tanggal 15 berapa hari kita libur?
Jawab:
Langkah 1: Konversi persoalan ke notasi waktu + asumsi bahwa yang dimaksudkan adalah dari tanggal 13 awal (jam 12 pagi) dan tanggal 15 akhir (jam 12 malam)
end = 15 24:00:00
start = 13 00:00:00
durasi = yang ditanyakan
Langkah 2: Kurangkan start - end untuk mendapatkan durasi:
15 24 0 0
13 00 0 0
__________ -
= 2 24
= 2 hari + 24 jam
= 2 hari + 1 hari
= 3 hari
2. Dino main di warnet mulai dari jam 1 lewat 35 menit dia bermain selama 2 jam. Jam berapa dia keluar?
Jawab:
Start = jam 1 lewat 35 menit
' konversikan waktu start ke notasi waktu dengan space: 00.00 - 24.59
start = 13.35
end = ditanyakan
durasi = 2 jam
'end = start + durasi
end = 13:35 + 2
= 15:35
Jawab:
Langkah 1: Konversi persoalan ke notasi waktu + asumsi bahwa yang dimaksudkan adalah dari tanggal 13 awal (jam 12 pagi) dan tanggal 15 akhir (jam 12 malam)
end = 15 24:00:00
start = 13 00:00:00
durasi = yang ditanyakan
Langkah 2: Kurangkan start - end untuk mendapatkan durasi:
15 24 0 0
13 00 0 0
__________ -
= 2 24
= 2 hari + 24 jam
= 2 hari + 1 hari
= 3 hari
2. Dino main di warnet mulai dari jam 1 lewat 35 menit dia bermain selama 2 jam. Jam berapa dia keluar?
Jawab:
Start = jam 1 lewat 35 menit
' konversikan waktu start ke notasi waktu dengan space: 00.00 - 24.59
start = 13.35
end = ditanyakan
durasi = 2 jam
'end = start + durasi
end = 13:35 + 2
= 15:35
Subscribe to:
Posts (Atom)