R=rate of boat in still water
c=rate of current
d=rt
since you're given that the time it takes to travel the same distance downstream and upstream, your equation will be d_1=d_2, or rt=rt
the rate upstream is r-c and the rate downstream is r+c (because the boat's and river's rates add up)
since you know t_1 and t_1 are 5 and 3, you can now set up 2 equations
<u>5*(r-c)=45</u> because (time upstream)*(rate upstream)=distance=45 miles
r-c=45/5=9
<u>3*(r+c)=45</u>
r+c=45/3=15
r-c=9 and r+c=15, so r=12 mi/h and c=3 mi/h
If you have any questions please ask
Answer:
i really dont know but yeh
This is exponential growth function
y=4(2)^x
X 4(2)^ x Y
0 4(2)^0 4
1 4(2)^1 8
2 4(2)^2 16
1/2 4(2)^(1/2) 1.4
see image below for graph
Solution:
The end points of line segment UV is U(0, 3) and V(–4, –5).
The line segment is Partitioned by a point in the ratio of 4:3.Let that point be (x,y).
Formula for internal division
A line segment having end points 
divided by a point (x,y) in the ratio of m:n.
Answer:
interesting can i get brainliest
Step-by-step explanation:
