SOLUTION: PLEASE Help. Doctors order IV fluids that have to be adjusted. The formula is D = V/4T. D is drip rate is drops per minute. V is the volume in cc. T is amount of time to be g

Algebra ->  Graphs -> SOLUTION: PLEASE Help. Doctors order IV fluids that have to be adjusted. The formula is D = V/4T. D is drip rate is drops per minute. V is the volume in cc. T is amount of time to be g      Log On


   

Question 729494: PLEASE Help.
Doctors order IV fluids that have to be adjusted. The formula is D = V/4T.
D is drip rate is drops per minute. V is the volume in cc. T is amount of time to be given in hours.
A.volume will be 1000cc. Rewrite the equation to determine the drip rate for various times T
B. burn victim may require faster rate and others may require slower. Make a table for 3 hour to 24 hours.
C. Make a graph from the table.
Thank you so much for your help.

Answer by KMST(5328) About Me  (Show Source):
You can put this solution on YOUR website!
D=V%2F4T assumes 15 drops per cc, but you do not need to know that.

A. V=1000 so D=1000%2F4T which simplifies to highlight%28D=250%2FT%29

B. We just plug the value for T into the formula and find D.
For example, for T=5 we calculate D=250%2F5=50 .
For T=10 we calculate D=250%2F10=25 .
Most values for D will not be whole numbers, so I guess you would round to the nearest whole number.
For T=3 D=250%2F3= 83.333.... = about 83.
For T=4 D=250%2F4=62.5 , which I would round up to 63.
My table would be:
matrix%282%2C6%2C13%2C14%2C15%2C16%2C17%2C18%2C19%2C18%2C17%2C16%2C15%2C14%29 matrix%282%2C6%2C19%2C20%2C21%2C22%2C23%2C24%2C13%2C13%2C12%2C11%2C11%2C10%29

C. The graph would look like this:
graph%28300%2C300%2C-3%2C30%2C-10%2C90%2C250%2Fx%29
You would first plot your data points (grid paper would help):
Then you would draw a smooth line that would agree with the the points.
If you had a graphing calculator or some graphing software, you could make it look better, but for practical purposes the table would be enough.