<h3>
Answer:</h3>
3 mi/h
<h3>
Step-by-step explanation:</h3>
Let c represent the speed of the current. Then 9+c is Nathan's speed downriver, and 9-c is Nathan's speed upriver. He travels 16 miles each way, so his total time is given by ...
... time = distance/speed
... total time = time downriver + time upriver
For distances in miles, speeds in miles per hour, and time in hours, this is ...
... 4 = 16/(9 +c) + 16/(9 -c)
... 9² -c² = 4(9 -c) +4(9+c) . . . . . multiply by (9+c)(9-c)/4
... 81 -c² = 72 . . . . . . . . . . . . . . . simplify
... 9 = c² . . . . . . . . . . . . . . . . . . . add c²-72
... c = 3
The speed of the current in the river is 3 mi/h.
Answer:
$46,800
Step-by-step explanation:
3/5 of 240 is 144
144*325 is 46,800
Question says that a bookkeeper is posting to the accounts of a manufacturer of coffee. Their accounting software deals with weights in kilograms, but the company’s handwritten accounts state that they have produced 21,560 pounds (lbs.) coffee this month.
Now we have to find about what entry in kilograms should they put into their spreadsheet.
Basically they want to convert 21560 pounds into kilogram.
We know that 1 pound = 0.453592 Kilograms
Then 21560 pound = 0.453592*21560 = 9779.44352 Kilogram
Hence final answer is approx 9779.44 Kilogram.