Answer:
12.3456790123
Step-by-step explanation:
its hard to explain but you could always use a clculator and no I did not use one. But these are hard I'm a math major
Step-by-step explanation:
The given question is wrong, so first of all we have correct this one.
The answer is given in picture, u can look.
I think this one is help u
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
