Concept explainers
To calculate: A delivery truck traveled 5 blocks west, 3 blocks north, 8 blocks east, and 12 blocks south. After this, where was the truck relative to its starting point?
Answer to Problem 9P
The position of truck is 3 blocks east and 9 blocks south relative to its starting point.
Explanation of Solution
Given information: A delivery truck traveled 5 blocks west, 3 blocks north, 8 blocks east, and 12 blocks south.
Calculation: For west and south means negative and for east and north means positive.
5 blocks west means -5, 3 block north means +3, 8 blocks east means +8, and 12 blocks south means -12.
Now we add east, west and north south to find the position of truck
east + west
here 3 with positive sign means 3 blocks east
north + south
here 9 with negative sign means 9 blocks south
Conclusion: The position of truck is 3 blocks east and 9 blocks south relative to its starting point.
Chapter 2 Solutions
Algebra: Structure And Method, Book 1
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