Find the total distance between the two runners:
5.1 + 4.1 = 9.2 km apart.
We want to calculate the distance each runner does:
Runner A distance = X km, rate = 8.5 km/ hr.
Time = X / 8.5
Runner B distance = (9.2 - x) Total distance between the runners minus what runner A runs equals where they meet).
Rate = 7.4 km/hr.
Time = (9.2-x) / 7.4
Now to find where they meet set the two equations equal:
x / 8.5 = (9.2-x) / 7.4
Cross Multiply:
7.4x = 78.2 - 8.5x
Add 8.5x to both sides:
15.9x = 78.2
Divide both sides by 15.9:
x = 78.2 / 15.9
x = 4.918 = 4.9 km.
Since X is the distance runner A runs, subtract that from his distance from the flag pole:
5.1 - 4.9 = 0.2
The runners meet 0.2 km west of the flag pole.
Answer:
The answer is -8
Step-by-step explanation:
First, add 8 to both sides to separate the 3r from the rest of the terms. Now you have 3r = -24. Divide both sides by 3, and now you have r = -8
B divided by 10 looks like this . . .
b/10
b divided into 10 looks like this . . .
10/b
The difference is that they are inverse of each other.
Answer:
no
Step-by-step explanation:
[3(a-2) / (a+2)(a-2)] - [6a / (a+2)(a-2)] = -3/(a-2)
