SOLUTION: How many liters of water containing 4 grams of salt per liter must be combined with x liters of water which contains y grams [y is less than 2] of salt per liter to yield a solutio

Question 271615: How many liters of water containing 4 grams of salt per liter must be combined with x liters of water which contains y grams [y is less than 2] of salt per liter to yield a solution with 2 grams of salt per liter.
need equation in x and y
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
How many liters of water containing 4 grams of salt per liter must be combined with x liters of water which contains y grams [y is less than 2] of salt per liter to yield a solution with 2 grams of salt per liter.
need equation in x and y

4gram solution------------------- y grams solution---------------- 2 gram mix
-------a ------------------------------ x liters-------------------- a+x

Let the quantity of 4 gram solution added be a
4a + xy = 2(a+x)
4a= 2(a+x) -xy
a= 2(a+x) -xy / 2

RELATED QUESTIONS
How many liters of water containing 5 grams of salt per liter must be combined with x... (answered by CharlesG2)

How many liters of water containing 3 grams of salt per liter must be combined with 4... (answered by Fombitz)

How much water must evaporate from 90 liters barrel full of brine containing 150 grams of (answered by jorel1380)

In a certain coastal basin, the sea water contains 3.3 grams of salt water per 1000... (answered by jim_thompson5910)

A crock contains 6 liters of brine at a salt concentration of 120 grams/liter. How much... (answered by stanbon)

Sea water contains 3.5 g of salt per liter. how many grams of salt are there in 1000mL of (answered by ikleyn,math_tutor2020)

In a certain coastal basin, the sea water contains 3.9 grams of salt per 1000 milliliters (answered by Earlsdon)

how many liters of water must be evaporated from 200 liters of a 4% salt solution so that (answered by Alan3354)