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Problem with changing between rates
- Thread starter Craig147
- Start date
D
Deleted member 4993
Guest
As posted, the question does not make sense!Hi,
I have 2 different rates, eg 100/h and 400/h
What formula would i use if i want to achieve a total of 1000 in 3h. I cant figure out how long each rate would need to run for.
Many thanks!
Please post the EXACT problem as presented to you.
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https://www.freemathhelp.com/forum/threads/read-before-posting.109846/
Please share your work/thoughts and context of the problem (what is the subject topic?) - so that we know where to begin to help you.
Sorry, i’ll try to explain better.
I have 2 rates of flow, for example one flow runs at 100 units per hour and the second flow runs at 400 units per hour.
If i start running a flow at 400 units per hour, after how much time would i need to change the flow to 100 units per hour in order to achieve exactly 1000 units after exactly 3 hours?
I have 2 rates of flow, for example one flow runs at 100 units per hour and the second flow runs at 400 units per hour.
If i start running a flow at 400 units per hour, after how much time would i need to change the flow to 100 units per hour in order to achieve exactly 1000 units after exactly 3 hours?
D
Deleted member 4993
Guest
You need to "find":Sorry, i’ll try to explain better.
I have 2 rates of flow, for example one flow runs at 100 units per hour and the second flow runs at 400 units per hour.
If i start running a flow at 400 units per hour, after how much time would i need to change the flow to 100 units per hour in order to achieve exactly 1000 units after exactly 3 hours?
after how much time would i need to change the flow
Assume:
F = # of hours after which change the flow was executed.
So now we have:
"F" hours at 400 units/hr -> how many units were carried = 400 * F
"3-F" hours at 100 units/hr -> how many units were carried = ?
Total # of units carried in "F" and "3-F" hours (from above) = ?
Continue...