Tamar ran 2/3 of a mile every day for 5 days. about how far did he run altogether
2 answers:
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For this case we define the following variable:
- <em>x: number of stamps </em>
We now write the equation that models the problem:
From here, we clear the value of x.
We have then:
Answer:
The number of stamps he has is:
1. Note that the number 1.8 consists of two parts 1 and 0.8.
2. The decimal 0.8 can be written as the fraction
3. Add these two numbers:
4. Since 18=2·3·3 and 10=2·5, the fraction can be simplified to the rational number