1.

panjang awal = 1/2 m

perubahan panjang = 1/10 m

panjang akhir = ?

panjang akhir = panjang awal - perubahan panjang

p akhir = 1/2 - 1/10

= 5/10 - 1/10

= 4/10 m

= 2/5 m

2.

Volume total = volume × banyak

V total = 1,25 liter × 3

= 3,75 liter

3.

s = v × t

s = jarak

v = kecepatan

t = waktu tempuh

s = 50 km/jam × 2 jam

= 100 km

4.

t = V/D

t = waktu

V = volume

D = debit

t = 24.000 liter / 40 liter/menit

t = 600 menit

t = 10 jam

5.

jarak sesungguhnya = skala × jarak peta

s sebenarnya = 1 : 50.000 × 5

= 5 × 50.000

= 250.000 cm

= 2,5 km

#semogamembantu