An ammonia and water mixture fills a five-gallon container. Eighty percent of the mixture is ammonia but some of the mixture will be drained and replaced with pure water. If a fivegallon mixture of fifty percent ammonia is desired, how many quarts of the mixture need to be drained before the water is added? (A quart is onefourth of a gallon.)
+36916 Amount of ammonia to start .8 ( 5 gal)
drain some amount x to replace with water
amount of ammonia removed = .8x
add water then have 5 gallons of 50% = .5 (5)
.8(5) - .8x = .5 (5) x is the amount removed and replaced with water (in GALLONS....You will need to convert to quarts)
