An oarsman can row his boat 3 mph in still water. He sets out on the Illinois River, which flows at 5 mph. We are interested in
1 answer:
Answer:
The speed from the observer is 8 mph.
Step-by-step explanation:
When the boat is going downstream with full force, its speed will be the one the oarsman can row on still water added by the flow of the river. In this case he can row the boat at speed of 3 mph, while the stream is 5 mph, so the speed from the observer standpoint is:
The speed from the observer is 8 mph.
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Answer:
19 dollars
Step-by-step explanation:
<h2>Buckle up! This is a good one!</h2>First we have to find the line that goes trough the two points. And it has the form :
<em>m is often called the slope.</em>
Given the two points (66000, 16) and (51000, 21) we find m with this formula:
We pick the point (51000,21) and plug it into the equation of the line and we find b:
<u>Where x represents the quantity and y represents the price.</u>
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<h2>The revenue</h2>The revenue is price times quantity, since price is y and quantity is x, we get
So the quantity that maximizes revenue is 57000,
<h3>let's find out the price by plugging it into the equation:</h3>