Is the following always, sometimes, or never true?
2 answers:
For this case we have the following expression:
To answer the question, what we must do is rewrite both sides of the equation.
For this, we apply the associative property.
We have then:
Rewriting we have:
Since both sides of the equation are equal, then the expression is always true.
Answer:
A) Always
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Given:
Nancy is running 3 meters per second.
Juan starts the same race 3 meters ahead of Nancy but he is going at 2 meters per second.
To find:
The equations for Nancy and Juan.
Solution:
Let x be the number of seconds.
Nancy is running 3 meters per second. So, the total distance covered by Nancy in the race is
Juan starts the same race 3 meters ahead of Nancy but he is going at 2 meters per second. So, the total distance covered by Juan in the race is
Therefore, the equations of Nancy and Juan are and
respectively.