Answer:
(4, 1)
Step-by-step explanation:
See attachment courtesy of Desmos.
Answer:
Blank 1: 40
Blank 2: 10
Step-by-step explanation:
You can start by representing the speed of the water as x and the speed of the dolphin as y, and writing an equation.
y+x=50
y-x=30
Adding these two equations together, you get:
2y=80
y=40 for the speed of the dolphin in still water. Now, you an use one of the previous equations to find the speed of the current.
40-x=30
x=10
Hope this helps!
Red=2 nits
blue=4 nits
if 6liters=blue=4 units
divide 2
3 liters=2 units=red
red=3 liters