Answer:
50 km per hour
Step-by-step explanation:
distance = 100km
time= 2hrs
average speed 100/2
50 km per hour
Answer:
The speed of the current is 5 miles per hour.
Step-by-step explanation:
Given, Joy kayaked up the river and then back in a total time of 6 hours.
The trip was 4 miles each way.
The current was difficult.
Let the speed of current be 'a' miles per hour
If joy kayaked at a speed of 5 mph in still water, we have to find what is the speed of the current?
Now, we know that,
distance = speed x time
So,
Then, total time = time for up stream + time for down stream
Now, let us use quadratic formula, to find a value.
Then,
we can neglect – ve values of speed.
A = 5.71
Answer:
f(13) = 44
Step-by-step explanation:
f(13) = 3 (13) +5 = 39 + 5= 44
Horizontal means zero slope, or a zero coefficient on x.
Answer: y = b