Answer:
-5a + 23
Step-by-step explanation:
Step 1: Distribute.
Step 2: Combine like terms.
Therefore, the answer is -5a + 23.
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1 answer:
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Given:
The compound inequality is
To find:
The solution for the given compound inequality in interval notation.
Solution:
We have,
Subtracting 6 from each side, we get
Divide each side by 3.
Here, 1 is not included in the solution set and 3 is included in the solution set.
Therefore, the solution in interval notation is (1,3].
Answer:
.
Step-by-step explanation:
Let C represent total daily charges in dollars and t represent time in hours.
We have been given that a plumber charges $50 for a service call plus $80 per hour.
The amount charged for t hours would be .
The total amount charged for t hours would be .
We are also told that plumber spends no longer than 8 hours a day at any one site, this means that time t have a restriction as:
Therefore, our required cost function would be .