Answer:
Speed of the river =
km per hour
Step-by-step explanation:
Speed of the boat in still water = 4 km per hour
Let the speed of the river = v km per hour
Speed of the boat upstream = (4 - v) km per hour
Time taken to cover 6 km = 
=
hours
Speed of the boat downstream = (4 + v) km per hour
Time taken to cover 12 km =
hours
Since, time taken by the boat in both the cases is same,

6(4 + v) = 12(4 - v)
24 + 6v = 48 - 12v
12v + 6v = 48 - 24
18v = 24
v = 
v =
km per hour
Answer:
1/3, 5/12, 1/2, 3/4
Step-by-step explanation:
A = 1/2 bh = 1/2(8)(6) = 48/2 = 24
answer
first one.
24 square units
Answer:
616/14=44 pages
Step-by-step explanation:
Answer:
Equation that represents the line passing through the point -3, -1 with a slope of 4 is

Step-by-step explanation:
Equation of line in point slope form is
-------(1)
Here

Substituting values in equation (1)
