X = -2
Combine terms to get:
-18x - 5 = 31
Add 5 to both sides
-18x = 36
Divide by -18
x = -2
It should be nonlinear, nonlinear, linear
Answer: The equations are
6x - 6y = 9
4x + 4y = 9
Step-by-step explanation:
Let x represent the speed of the row boat in still water.
Let y represent the speed of the current.
Dana can travel 9 miles in her rowboat in 6 hours against the current. This means that the total speed at which she travelled is
(x - y) miles per hour.
Distance = speed × time
Distance travelled against the current is expressed as
9 = 6(x - y)
6x - 6y = 9
With the current, it takes 4 hours to row the same distance. This means that the total speed at which she travelled is
(x + y) miles per hour.
Distance travelled with the current is expressed as
9 = 4(x + y)
4x + 4y = 9
It is 1.600 since the hundredths is 4 and under.
I am so so so sorry I do not know the answer but I might later in the shool year
