Call the rate in still water vs;
upstream you have: vs-v=6/4
downstram you have: vs+v=6/3
where v is the rate with which the river flows.
rearranging:
vs-v=3/2
vs+v=2
from the second you have v=2-vs substitute into the first:
vs-2+vs=3/2
2vs=7/2
vs=7 mi/hr
Answer:
12
Step-by-step explanation:
To find constant: y=k/x
the constant there is only 12
the answer is 12
y=12
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1
y=12
Answer:
D. The system is in echelon form.
Step-by-step explanation:
Check attachment
Answer:
0.75 And 75%
Step-by-step explanation:
If 3/4 came then 25, 50, 75, 100 what is the 3rd number of of those 4
Answer:
4.19
Step-by-step explanation:
Find the mean:
Find the standard deviation:
