Answer:
2 hours
Step-by-step explanation:
First we define variables:
x = distance traveled by player A
y = distance traveled by player B
We have the following system of equations:
x + y = 1550
x = 9y
Solving the system we have:
x = 1395
y = 155
Answer:
x = 1395 yards (player A)
y = 155 yards (player B)
Note that a^-3 = 1/a^3
9^3 = 729
1/9^3 = 1/729
Solution: 1/729