Concept explainers
a.
To write:an equation to represent the situation.
a.
Answer to Problem 2.7EP
Explanation of Solution
Given:
An auto mechanic charges an initial fee of
Calculation:
According to the question, the fixed charge of the auto mechanic is
Let x be the addition time.
Therefore, the required equation to represent the situation is
b.
To find:the total amount if the mechanic fixed her car in 3.5 hours.
b.
Answer to Problem 2.7EP
Explanation of Solution
Given:
An auto mechanic charges an initial fee of
Calculation:
From part(a), the required equation to represent the situation is
According to question.
Therefore, the total amount if the mechanic fixed her car is
Hence, the total amount if the mechanic fixed her car in 3.5 hours is
Chapter SH Solutions
Glencoe Algebra 2 Student Edition C2014
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