9. the ratio of nitrogen to potassium in a sample of soil is 12:9. the sample has 36 units of nitrogen. how…

9. the ratio of nitrogen to potassium in a sample of soil is 12:9. the sample has 36 units of nitrogen. how much potassium does the sample have? a 21 units b 27 units c 33 units d 48 units

9. the ratio of nitrogen to potassium in a sample of soil is 12:9. the sample has 36 units of nitrogen. how much potassium does the sample have? a 21 units b 27 units c 33 units d 48 units

Answer

Explanation:

Step1: Set up the proportion

Let (x) be the amount of potassium. The proportion is (\frac{12}{9}=\frac{36}{x}).

Step2: Cross - multiply

(12x = 9\times36).

Step3: Solve for (x)

(x=\frac{9\times36}{12}). First, calculate (9\times36 = 324). Then, (x=\frac{324}{12}=27).

Answer:

B. 27 units