108 miles 3 hours = 36 mph upstream
108 miles 2 hours = 54 mph downstream
bv = boat velocity in still water
cv = current velocity
bv -cv = 36
bv +cv = 54 Adding both equations
2*bv = 90
boat velocity in still water = 45 mph
since bv + cv = 54
then we know the current velocity = 9 mph
Answer:
Step-by-step explanation:
Let initial number of plants =100
Increase I year 60
Number after 1 year 160
Increase IIyear 60% 96
Number after II year 256
Increase in III year 60% 153.6
and so on
In general if t is number of years and N number of plants after n years
the expression would be
In other words, the expressions wouldbe the same as amount after t years of compound interest.
<h2>SOLVING</h2>
Find the point-slope equation of the line, with the info given
Formula used,
| result
Answer:
The answer would be 20.
Step-by-step explanation: The area is 4 x 5 which equals 20.