Speed of the boat = u
speed of the current = v
in downstream,
u - v = 105/5
u - v = 21
in upstream
u + v = 105/7
u + v = 15
add both equations
2u = 36
u = 18
v = -3
so
speed of the boat = 18 km/h
speed of the current = 3 km/h
Answer:
Step-by-step explanation:
Distance covered by first car:
Distance covered by second car:
Total distance:
Answer:
is A
r<11
Step-by-step explanation:
I HOPE THIS HELPS
Answer:
d ≈ 21.26 units
Step-by-step explanation:
calculate the distance d using the distance formula
d =
with (x₁, y₁ ) = (- 3, 8 ) and (x₂, y₂ ) = (13 - 6 )
d =
=
=
=
=
≈ 21.26 units ( to 2 dec. places )
Answer:
24 degrees
Step-by-step explanation:
2b=180^o-132^o
2b=48^o
b=24^o