In 1991, an american, ann trason, set a world record by running 1000 km in 7 hours, 50 minutes, and 9 seconds. which is the best estimate of her average speed? (hint: think rate)
a. 14 km per hr
b. 12 km per hr
c. 18 km per hr
d. 16 km per hr

it has the same slope and a different y-intercept

hope this : )

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w