Answer:
20
Step-by-step explanation:
collect like terms and divide both sides
88%
Since the suitcase weighs 3kg,
weight left for packing
= 25 -3
= 22kg
Percentage left for packing
= 88%
D
6b+4r
t = 6 hours
D = r x t
1920 = 320t
divide both sides by 320: