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Example 1.146 from Elementary Algebra, 1.10 Systems of Measurement
Nick ran a 10K race. How many meters did he run?
Work it out on paper first. Then open the solution one step at a time, and stop as soon as you can finish on your own.
We will convert kilometers to meters using the identity property of multiplication.
| 10 kilometers | |
| Multiply the measurement to be converted by 1. | |
| Write 1 as a fraction relating kilometers and meters. | |
| Simplify. | |
| Multiply. | 10,000 meters |
| Nick ran 10,000 meters. |
The book's Try It right after this example: same idea, new numbers. Only the answer is given.
Sandy completed her first 5K race! How many meters did she run?
How did it go?