Answer:
Step-by-step explanation:
Given that:
Speed of Wilmer up the hill = 
km/min
Time taken up the hill = 
minutes
Speed of Wilmer down the hill = 
km/min
Time taken up the hill = 
minutes
Distance can be calculated by multiplying the Speed with Time i.e.
The formula for distance is given as:
Distance up the hill = 
Distance down the hill = 
It is well known that, the distance up the hill and down the hill will be same.
Putting both the values equal, we get:
If you divide it by 5 on both numbers you get four and three. So 4 is the answer.
You can try then by plotting the points in.
The answer is C
Make sure by plotting in the points, lets take (-5,27)
y = 12 -3(-5)
y = 12 + 15
y = 27
27 = 27
This is correct
Lets try (-1,15)
y = 12 -3(-1)
y = 12 + 3
y = 15
15 = 15
This is correct
Lets try (8,-12)
y = 12 -3(8)
y = 12 - 24
y = -12
-12 = -12
This is correct too.
The correct ordered pairs are <span>C(-5,27),(-1,15),(8,-12)</span>
Your answer would be 46.50 because you would divide 31 in half (for the 50%) then add that to the 31. So 31+15.50= $46.50 hope this helps. If not let me know
