A boat running downstream covers a distance of 20 km in 2 hours while for covering the same distance upstream, it take 5 hours. What is the speed of the boat in still water?Harus dijawab. Pilihan tunggal. (3 Poin)
1. A boat running downstream covers a distance of 20 km in 2 hours while for covering the same distance upstream, it take 5 hours. What is the speed of the boat in still water?Harus dijawab. Pilihan tunggal. (3 Poin)
Jawaban:
10km
Perkilo jam
Penjelasan:
Karena 20km 2jam artinya 1jamnya 10km
Semoga bisa membantu
Maaf kalok salah
2. 2. The distance of two cities on the map is 13 cm, while the real distance is 91 kmdefermain the scale of the map!
Jawaban:
1:700.000
Penjelasan dengan langkah-langkah:
S=Jp/Js
S=13/9.100.000
S=1/700.000
Penjelasan dengan langkah-langkah:
Tricks : real distance/distance on the map
Ask: Scale of the map?
Answer:
: real distance/distance on the map
: 91 km/ 13 cm
: 9.100.000 cm/ 13 cm
: 700.000cm/1cm or 1:700.000
Sorry if wrong
3. The distance of two cities on the map is 15 cm, while the real distance is 105 km. then the scale of the map is
Jawaban:
The scale of the map is 1 : 700000
Penjelasan dengan langkah-langkah:
105 KM = 10500000
S = JP/JP
S = 15/10500000
S = 1 : 700000
Jawab:
Scale = 1 : 700.000
Penjelasan dengan langkah-langkah:
scale = map distance : real distance
= 15 cm : (105 km x 100.000 cm)
= 15 cm : 10.500.000 cm (divide by 15)
= 1 cm : 700.000 cm
Scale = 1 : 700.000
Note:
divide by = bagi dengan.
4. A car requires 22 liters of petrol to travel a distance of 2222 km. Average distance travelled on 50 liters of petrol is50 km55 km505 km5050 km
Jawaban:
5050 km
Penjelasan dengan langkah-langkah:
[tex] \frac{22}{2222} = \frac{50}{x} \\ \frac{1}{101} = \frac{50}{x} \\ 5 050 = x[/tex]
5. On a map, 1 cm represents 40 km. How long of length on the map represents a distance of 240 km
Jawaban:
1cm = 40 km
240 km = 240/40 x 1 = 6 cm
6. lily jogged 1/8 of 24 km and walked the rest of the distance.what was the distance lily walked?
Jawab:
Penjelasan dengan langkah-langkah:
Distance lily walked = (1-1/8)×24 = (8/8-1/8)×24 = 7/8×24 = 21 km
7. A car moving at a distance of 10 km the first 5 minutes, 10 minutes later a distance 45 km and 15 minutes later the car was a distance 15 km average speed of the car it isa. 70 km/h b. 140 km/h c. 35 km/h d. 23 km/h
10 km = 5 minutes
45 km = 10 minutes
15 km = 15 minutes
Distance =
10 + 45 + 15 = 70 km
Time =
5 + 10 + 15 = 30 minutes
Speed = Distance : Time
= 70 km : 30 minutes
= 70 km : 1/2 hour
= 70 km × 2/1 = 140 km
1 hour = 60 minutes
1/2 hour = 30 minutes
Answer =
140 km/h (B)
I Hope This Helps
Sorry If Wrong :)
8. The distance from Town A to Town B on the map is 6 cm. The actual distance between both towns is 24 km. Find the scale of the map!
Jawaban: 1:600000
Penjelasan:
JP (jarak pada peta) bagi JS (jarak sebenarnya)
*maaf kalau salah
9. A car moving at a distance of 10 km the first 5 minutes, 10 minutes later a distance 45 km and 15 minutes later the car was a distance 15 km. average speed of the car it is..
Kinematika
• GL
S₁ = 10 km. t₁ = 5 min
S₂ = 45 km. t₂ = 10 min
S₃ = 15 km. t₃ = 15 min
v = __?
laku rata-rata
v = ΣS / Σt
v = (S₁ + S₂ + S₃) / (t₁ + t₂ + t₃)
v = [(10 + 45 + 15) km] / [(5 + 10 + 15) min]
v = (70 km) / (30 min)
v = (70 km / (½ jam)
v = 140 km/jam ✔️
———
Brainly.co.id. id berarti Indonesia
Sesuai pertanyaan dengan bahasa yang bersesuaian
10. A car spends 8 liters of gasoline for a distance of 56 km. If the distance traveled 84 km then the necessary gasolinr is..
diketahui :
volum bensin = 8 liter
jarak = 56 km
ditanya : volum bensin yg dibutuhkan jika mengendarai mobil sejauh 84 km
jawab :
56 : 8 = 7 (setiap 1 liter menempuh jarak 7 km)
maka :
84 : 7 = 12 liter
jadi, banyak bensin yg dibutuhkan sebesar 12 literJawaban :
= 84 km/56 km × 8 liters
= 1,5 × 8 liters
= 12 liters
11. A car moving at a distance of 10 km the first 5 minutes, 10 minutes later a distance 45 km and 15 minutes later the car was a distance 15 km. average speed of the car it is … a. 70 km/h b. 140 km/h c. 35 km/h d. 23 km/h
Jawaban:
b. 140 km/jam
Penjelasan:
maaf kak kalau salah ya
12. Nias, ... covering an area of 5,121.3 km^2, s the largest of the island off Sumatera.
nias is covering and area os 5,121.3 km
13. A car requires 22 litres of petrol to travel a distance of 198 km. find the distance that the car can travel on 63 litres of petrol
Jawaban:
OK so first ,
Distance per litre = 198km / 22 litres ---> 9km/litre
Distance of car= 9km/litre x 63
Distance of Car is 567km
Do give me a like and comment if you found this helpful :)
14. a car moving at a distance of 10 km the first 5 minutes, 10 minutes later a distance 45 km and 15 minutes later the car was distance 15 km. average speed of the car it is... a. 70 km/h b. 140 km/h c. 35 km/h d. 23 km/h
Jawaban:
B. 140 Km/h
Penjelasan:
10 km = 5 minutes
45 km = 10 minutes
15 km = 15 minutes
Distance = 10 + 45 + 15 = 70 km
Time = 5 + 10 + 15 = 30 minutes
Speed = Distance : Time
= 70 km : 30 minutes
= 70 km : 1/2 hour
= 70 km × 2/1
= 140 km/h
#Semoga Membantu ^_^
Sebuah mobil bergerak sejauh 10 km pada 5 menit pertama, 10 menit kemudian menempuh jarak 45 km dan 15 menit kemudian mobil menempuh jarak 15 km. kecepatan rata-rata mobil tersebut adalah
PembahasanDiketahui
Sebuah mobil menempuh
Jarak 10 km pada 5 menit pertama
Jarak 45 km pada 10 menit berikutnya
Jarak 15 km pada 15 menit berikutnya
Ditanyakan
Kecepatan rata-rata mobil tersebut ?
Besarnya perpindahan mobil
Δs = 10 km + 45 km + 15 km
Δs = 70 km
Selang waktu perjalanan mobil
Δt = 5 menit + 10 menit + 15 menit
Δt = 30 menit
Δt = jam 30/60
Δt = jam 1/2
Jadi kecepatan rata-rata mobil tersebut adalah
v =
v = s
t
v = 70 Km / 1/2 jam
v = { 70 x 2/1 } km/jam
= 140 km/jam
= Jawaban B
Pelajari lebih lanjut
Contoh soal lain tentang kecepatan
Kecepatan printer dalam mencetak: brainly.co.id/tugas/9117853
Kecepatan B menyusul A: brainly.co.id/tugas/13033482
Detil Jawaban
By : Ahyus79
Kelas : 7
Mapel : Fisika
Kategori : Gerak Lurus
Kode : 7.6.7
15. The actual distance from Surabaya to Banyuwangi (East Java) is 210 km, while the distance on a map is 30 cm. Find the scale of the map!
Jawab:
Penjelasan dengan langkah-langkah:
actual distance = 210 km = 21.000.000 cm
map distance = 30 cm
Scale = 30 : 21.000.000
Scale = 1 : 700.000
Jawab:
so the scale is 1 : 700.000
Penjelasan dengan langkah-langkah:
actual distance is 210 km = 21.000.000 cm
distance on a map is 30 cm
scale?
30 : 21.000.000
1 : 700.000
16. the distance of two cities on the map is 13 m, while the real distance is 91 km.determain the scale of the map!mohon bantuannya
Jawaban:
the scale of the map is 1:7.000
Penjelasan dengan langkah-langkah:
Tobeknown:
map distance = 13 m
real distance = 91 km = 91.000 m
Tobeasked:
map scale = ... ?
Solving:
scale = map distance : real distance
scale = 13 : 91.000 (both divided by 13)
scale = 1 : 7.000
Penjelasan dengan langkah-langkah:
Diketahui:Jarak pada peta=13 m=1300
Jarak sebenarnya=91 km
=9100000
Ditanya:Skala?
Jawab:Skala=JP/JS =1300/9100000=1/7000
Semogamembantudanmaafkalosalah!!!
Maafjugakalojwbnyadalambahasaindo,tapiakutetepngertikokapayangkamutanya
17. 25. If the scale of the map is 1 :400.000, while the real distance is 12km, what is the map distance ? *
artinya:
25. Jika skala peta adalah 1:
400.000, sedangkan jarak sebenarnya adalah 12
km, berapa jarak peta? *
18. A duck swam from one end of a pond to another end,and back again ,covering a distance of 60m altogether.it completed the whole distance in 30 seconds. It took 10 seconds to swim the first part of the distance. What was its speed for the second part of the distance?
40+20=60second
maaf kalo salah
19. A car travelled a distance of 240 km in 3 hours. The speed of the car was ?
Jawaban:
80 km/jam
Penjelasan dengan langkah-langkah:
RumusmencariKecepatan: jarak/waktu
MencariKecepatan== 240/3
== 80 km__________________________________
A car travelled a distance of 240 km in 3 hours. The speed of the car was ?
Terjemahan:Sebuah mobil menempuh jarak 240 km dalam waktu 3 jam. Kecepatan mobil tersebut adalah?
------------------------------------------------------------------
semoga membantu=maaf kalau salah
bantu follow.pliisss
jadikan jawaban tercerdas/terbaik.pliisss
terimakasih
20. it take a cyclist 44 minutes to cycle a distance of 11 km. how long it will taje him to cycle a distance of 45 km
180 minutes.............
0 Komentar