Algebra-2

1. According to the information given in the question, the flow rate (F) of water is directly proportional to the square of the diameter (d) of the pipe. So we can write the proportional relationship as , where  is the proportionality constant.

2. First, substitute the known conditions  and  into the relationship to find the value of :

   - , that is, .

   - Solve to get

Click "Show Answer" to reveal the answer and analysis