Answer:
Step-by-step explanation:
8x - 5 = 6x + 1
2x - 5 = 1
2x = 6
x = 3
a) 
The average speed is equal to the ratio between the total distance (
and the total time taken (
):

the distance travelled by the trucker in the first 3 hour can be written as the time multiplied by the velocity:

So the total distance is

The total time is equal to the first 3 hours + the time taken to cover the following 20 miles in the city:

So, the equation can be rewritten as:

b) 0.50 h (half a hour)
Since we know the value of the average speed,
, we can substitute it into the previous equation to find the value of
, the time the trucker drove in the city:

We calculate both velocities:
upstream 8 miles in 2 hours = 4 miles / hour
downstream 8 miles in 1 hour = 8 miles / hour
ps -stream speed = 4 mph
ps + stream speed = 8 mph
Adding both equations
2 ps = 12 mph
paddling speed = 6 mph
stream speed = 2 mph
Answer:
I will just give you the way of solving it
Step-by-step explanation:
First you have to change the sgape of the equation and it will become like this :
-6y=-2x+12
And then:
Y=0.33x+2
And then you have to give values to x and find y
For example i will make x zero (0)
It will become
Y=0.33(0)+12
=+12
And the points are (0,+12)
Go on like this and draw the line
Good luck
Sorry for bad english
it is correct
Step-by-step explanation: