SOLUTION: A dehydrated patient needs a 6.1% saline IV. Unfortunately the hospital only has bags of 5% and 7% saline solutions. How many liters of each of these solutions should be mixed toge

Question 371916: A dehydrated patient needs a 6.1% saline IV. Unfortunately the hospital only has bags of 5% and 7% saline solutions. How many liters of each of these solutions should be mixed together to yield 2 liters of the desired concentration?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!

.
.
.
Let A be the amount of 5% solution, B the amount of 7% solution.
1.
.
.

2.
Multiply eq. 1 by (-5) and add to eq. 2,

liters
Then from eq. 1,

liters
RELATED QUESTIONS
A dehydrated patient needs 6.1% saline IV. Unfortunately the hospital only has bags of 5% (answered by stanbon)

A dehydrated patient needs a 6.4% saline IV. Unfortunately, the hospital only has bags... (answered by Fombitz)

A dehydrated patient needs a 6.4% saline IV. Unfortunately, the hospital only has bags of (answered by ewatrrr)

A dehydrated patient needs a 3.24% saline IV. Unfortunately, the hospital only has bags... (answered by josmiceli)

A dehydrated patient needs a 6.8% saline IV. Unfortunately, the hospital only has bags of (answered by stanbon)

A dehydrated patient needs a 3.82% saline IV. Unfortunately, the hospital only has bags... (answered by ewatrrr)

A dehydrated patient needs a 3.82% saline IV. Unfortunately, the hospital only has bags... (answered by lwsshak3)

A dehydrated patient needs a 3.6% saline IV. Unfortunately, the hospital only has bags of (answered by sofiyac,mananth)

A dehydrated patient needs a 7.9% saline IV. Unfortunately, the hospital only has bags of (answered by jorel1380)