Answer:
Speed of boat in still water is 6km/h
Speed of current is 4km/h
Step-by-step explanation:
We know speed = distance / time
Let the speed of boat in still water be x
Let the speed of current be y
Hence the speed of boat, down stream = 
Distance downstream = 20km
Time taken = 2 hours
We have
......(1)
Speed of boat upstream = 
Distance upstream = 4
Time taken = 2
We have
...(2)
Adding (1) & (2)
Substituting in (1) we get
The point-slope form:
We have two points (-9, 7) and (9, 1). Substitute:
Answer: 550, 700
Step-by-step explanation: We just add.
150,700
+ 400,000
_________
550, 700
Hope that helps!
Answer:
B
Step-by-step explanation:
180-150=30
angle 3 is a right angle so it equals 90
all triangles add up to 180
so 90 + 30 is 120
180-120=60
a line is 180 degrees
so the answer is 120 B
Answer:
"OC. Invasive species reduce the availability of natural resources for native species by outcompeting the native species for those resources"
Step-by-step explanation:
Most invasive species reproduce / spread faster than the native species, so the availability of natural resources is reduced for the native species.
Have a nice day!
I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)
- Heather
