To describe: the occurs at time A, B, C, and D and to find the runners finish.
Answer to Problem 19PPE
Runner 2 wins the race followed by runner 1 and then runner 3.
Explanation of Solution
Consider the below graph. It represents distance travelled by three runners during a race. In this graph horizontal axis represents time and vertical represents distance.
Consider first line nearer to the horizontal axis is runner 1, middle line is runner 2 and top most line is runner 3.
At time A, runner 3 has travelled more distance as compared to runner 1 and runner 2. Also, distance travelled by runner 2 is greater distance travelled by runner 1. At time instance B, runner 2 and 3 are at the same distance while runner 1 is behind them.
Runner 1 and 3 are the same distance at time C while runner 2 is leading. At time instance D, all three have finished the race.
Thus, runner 2 wins the race followed by runner 1 and then runner 3.
Chapter 4 Solutions
High School Math 2015 Common Core Algebra 1 Student Edition Grade 8/9
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