3when klorina swims with the current, she swims 10 km
in 2 h. against the current, she can swim only 8 km in
the same time. how fast can klorina swim in still water?
what is the rate of the current?

Speed in still water 9km

Speed of the current   1 km

Step-by-step explanation:

Speed of the current C

Speed of the still water S

Speed with the current speed of the still water ₊ speed of the current

                                      S ₊ C      

Speed with the current S ₊ C 10km

Speed against the current speed of the still water ₋speed of the current

                                              S ₋ C

Speed against the current S ₋ C 8km

Speed in still water Speed with the current ₊ Speed against the current÷ 2

                                10 ₊ 8 ÷ 2

                                18 ÷ 2

Speed in still water 9km

Speed of the current Speed with the current ₋ Speed against the current ÷ 2

                                      10 ₋ 8 ÷ 2

                                      2 ÷ 2

Speed of the current   1 km

the two may have that, even a breakdown is probably offered

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