The speed of a stream is 2 mph. A boat travels 20 miles upstream in the same time it takes to travel 40 miles downstream. What i
s the speed of the boat in still water?
The speed of the boat in still water is mph.
(Simplify your answer. Type an integer or a decimal.)
The speed of the boat in still water is mph.
(Simplify your answer. Type an integer or a decimal.)
1 answer:
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We see that the area is 159 3/8 and the length is 18 3/4.
Because the area is the length*width, to find the width, we must divide the area by the length.
Think of it this way:
Divide l on both sides:
And w is what we're looking for.
So, divide 159 3/8 by 18 3/4.
You should get that the width is 8.5 feet :)
Because the area is the length*width, to find the width, we must divide the area by the length.
Think of it this way:
Divide l on both sides:
And w is what we're looking for.
So, divide 159 3/8 by 18 3/4.
You should get that the width is 8.5 feet :)
ANSWER
The three expressions are
EXPLANATION
We were given the volume in cubic units to
If we factor 2, we get,
The expression in parenthesis is a difference of two squares. But you may not recognize it at first sight.
This further gives us.
The three expressions are
EXPLANATION
We were given the volume in cubic units to
If we factor 2, we get,
The expression in parenthesis is a difference of two squares. But you may not recognize it at first sight.
This further gives us.