9514 1404 393
Answer:
- boat: 48 km/h
- current: 14 km/h
Step-by-step explanation:
The upstream speed is ...
u = (204 km)/(6 h) = 34 km/h
The downstream speed is ...
d = (372 km)/(6 h) = 62 km/h
The speed of the boat in still water is the average of these values:
b = (34 kph +62 kph)/2 = 48 kph
The speed of the water is the difference between the boat's speed and the speed made good:
w = 48 -34 = 14 . . . km/h
The rate of the boat in still water is 48 km/h. The rate of the current is 14 km/h.
Answer:
p=14
q=16
Step-by-step explanation:
if,
a,b,c,d.......... (Arithmetic progression)
b-a=c-b=d-c
The differences of the adjacent elements are equal.
N=-5 you got to get the n by it self
Answer:
21.0
Step-by-step explanation:
SOHCAHTOA
In this case you would be using TOA
tan (x) = opposite/ adjacent
tan (51) = x / 17
x = 17 tan (51)
x = 20.9932
x= 21.0
<span>simplified would be
</span><span>
2(x + 3)+ 8 + 5(x - 2) + 4x + 3
= 2x + 6 + 8 +5x -10 + 4x +3
= (</span>2x + 5x +4x ) + (6 + 8 -10 + 3)
=11x + 7
