The speed of stream is 3 km/hr
<em><u>Solution:</u></em>
Given that girl is swimming downstream
To find: Speed of stream
In still water she can swim at 2km/h and the river is flowing with her
Speed in still water = 2 km/hr
She covered a distance of 12km in 2h 24 min
Distance = 12 km
time taken = 2h 24 min = 
Therefore,
<em><u>If the speed of a boat in still water is u km/hr and the speed of the stream is v km/hr, then:
</u></em>
Speed downstream = (u + v) km/hr
5 km/hr = 2 km/hr + v
v = 5 - 2
v = 3 km\hr
Thus speed of stream is 3 km/hr
Market, planned, and mixed are three basic types of economic systems. A market system is a process where many actors are decision makers in the economy and both bid and ask, which helps bidders and sellers make deals. A planned economy is where decisions are made regarding production and investment are embodied in a plan formulated by a central authority, usually the authority being public like a government agency.
The economy may be great as other countries had to pay a lot of money due to having to borrow money and also guns, weapons and other supplies however it might be negative because a lot of money was sent by them to help Britain and France
If there are any option please leave them below, but I would guess that west Africa had more freedom before European exploration. After European exploration, Africans were brought to the states and other places to be actioned as slaves.
I hope this helps, I would appreciate branliest. : )
