The brain wine river is at its what stage of 9 feet you can do to rain. The next measurement show that the river has risen one and 1 1/12 feet added measurement shows on one foot and 1 5/12 feet. How many more feet is there ever needs to be risen to be the major flood stage of 13 feet?

Answer 1

To determine how much more the river needs to rise to reach the major flood stage of 13 feet, let's start by calculating its current elevation after the two measurements given.

1. Starting elevation: 9 feet.
2. First rise: 1 and 1/12 feet.
   • Convert 1 and 1/12 feet to an improper fraction:
     • 1 = 12/12, so 1 and 1/12 = 12/12 + 1/12 = 13/12 feet.
3. Second rise: 1 and 5/12 feet.
   • Convert 1 and 5/12 feet to an improper fraction:
     • 1 = 12/12, so 1 and 5/12 = 12/12 + 5/12 = 17/12 feet.

Now, we add these rises to the initial measurement:

• Initial elevation: 9 feet = 9/1 = 108/12 feet (converting to twelfths for easy addition).
• First rise: 13/12 feet.
• Second rise: 17/12 feet.

Now, let's sum these values:

\[ \text{Total elevation} = \frac{108}{12} + \frac{13}{12} + \frac{17}{12} = \frac{108 + 13 + 17}{12} = \frac{138}{12}. \]

Now we can simplify \( \frac{138}{12} \):

\[ \frac{138}{12} = 11.5 \text{ feet}. \]

Now, we compare this with the major flood stage of 13 feet:

\[ \text{Required rise} = 13 - 11.5 = 1.5 \text{ feet}. \]

Thus, the river needs to rise 1.5 feet more to reach the major flood stage of 13 feet.