In a cleaning mixture, the amount of water is directly proportional to the amount of ammonium a mixed with 5 gallons of water requires 10 teaspoons of ammonia. How many gallons of water are needed for 25 teaspoons of ammonia write your answer and decimal form.
The ratio of water to ammonia is 5:10 or 1:2.
To find out how much water is needed for 25 teaspoons of ammonia, we need to set up a proportion:
1 gallon / 2 teaspoons = x gallons / 25 teaspoons
Cross multiplying, we get:
2x = 25
x = 25 / 2
x = 12.5
Therefore, 12.5 gallons of water are needed for 25 teaspoons of ammonia.