Let the boat speed in still water be b.
Let the current speed be c.
The speed going upstream is 20/4 = 5 mph.
The speed going downstream is 32/4 = 8 mph.
b - c = 5 ........(1)
b + c = 8 .......(2)
Adding equations (1) and (2) we get:
2b = 13
b = 13/2 = 6.5
Plugging in the value for b into equation (1) we find c = 1.5.
The boat speed in still water is 6.5 mph and the current speed is 1.5 mph.
Answer:
I got 2 as an answer
Step-by-step explanation:
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Answer:
the awnser is 2, the negatives cancel
You could use a calculator. Other than that, I've never heard of an easier way to do long division.
There's nothing here to choose from but it should be something like : q + d = 18; .25q + .10d = 2.85
