The Brandywine River is at its flood stage of 9 ft. It’s continuing to rain. The next measurement shows that the river has risen 1 1/12ft.
ft. An additional measurement shows that the river has risen 1 5/12ft. ft. How many more feet does the river need to rise to be at the major flood stage of 13 ft.? Express your answer in simplest form. (1 point)
The river has already risen 1 1/12 ft + 1 5/12 ft = 2 4/12 ft = 2 ft to reach its current level.
To be at the major flood stage, the river needs to rise an additional 13 ft - 2 ft = 11 ft. Answer: \boxed{11}.