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A river flows at 7 miles per hour. A boat traveled with the current from Town A to Town B, which are 200 miles apart. Then, the boat turned around, and traveled against the current to reach Town C, which is 120 miles away from Town B. The second leg of the trip (Town B to Town C) took the same time as the first leg (Town A to Town B). During this whole trip, the boat was driving at a constant still-water speed. Answer the following question: During this trip, the boat's speed on still water was Imiles.

A river flows at 7 miles per hour. A boat traveled with the current from Town A to Town B, which are 200 miles apart. Then, the boat turned around, and traveled against the current to reach Town C, which is 120 miles away from Town B. The second leg of the trip (Town B to Town C) took the same time as the first leg (Town A to Town B). During this whole trip, the boat was driving at a constant still-water speed. Answer the following question: During this trip, the boat's speed on still water was Imiles.

Algebra: Structure And Method, Book 1
Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter12: Quadratic Functions
Section12.8: Joint And Combined Variation
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A river flows at 7 miles per hour. A boat traveled with the current from Town A to Town B, which are 200 miles apart. Then, the boat turned around, and traveled against the current to reach Town C, which is 120 miles away from Town B. The second leg of the trip (Town B to Town C) took the same time as the first leg (Town A to Town B). During this whole trip, the boat was driving at a constant still-water speed. Answer the following question: During this trip, the boat's speed on still water was |miles.
Transcribed Image Text:A river flows at 7 miles per hour. A boat traveled with the current from Town A to Town B, which are 200 miles apart. Then, the boat turned around, and traveled against the current to reach Town C, which is 120 miles away from Town B. The second leg of the trip (Town B to Town C) took the same time as the first leg (Town A to Town B). During this whole trip, the boat was driving at a constant still-water speed. Answer the following question: During this trip, the boat's speed on still water was |miles.
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