An architect charges a service fee of [tex]$\$[/tex]75[tex]$ in addition to charging $[/tex]\[tex]$25$[/tex] per hour, where [tex]$h$[/tex] is the number of hours. If the bill from the architect is [tex]$\$[/tex]150[tex]$, which equation represents the charges?

A. $[/tex]75 + 25h = 150[tex]$
B. $[/tex]25 + 75h = 150[tex]$
C. $[/tex]75(h + 25) = 150[tex]$
D. $[/tex]25(h + 75) = 150$



Answer :

Let's analyze the problem step-by-step and determine which equation correctly represents the charges from the architect.

1. Identify the given values:
- Service charge: \[tex]$75 - Rate per hour: \$[/tex]25
- Total bill: \[tex]$150 - \(h\) represents the number of hours worked. 2. Based on the problem, the total cost can be described as a sum of the service charge and the hourly charges. 3. Let's construct the equation step-by-step: - The service charge is a fixed amount: \$[/tex]75.
- The hourly charge is dependent on the number of hours worked, which is given by [tex]\(25 \cdot h\)[/tex].

4. Combining these, the total bill is made up of the service charge plus the hourly charges:
- Service charge + (Rate per hour [tex]\(\cdot\)[/tex] Hours)
- \[tex]$75 + \$[/tex]25 [tex]\(\cdot\)[/tex] [tex]\(h\)[/tex]

5. Set this expression equal to the total bill (\$150):
- [tex]\(75 + 25h = 150\)[/tex]

6. Examine the provided options to find the matching equation:
- [tex]\(75 + 25h = 150\)[/tex]
- [tex]\(25 + 75h = 150\)[/tex]
- [tex]\(75(h + 25) = 150\)[/tex]
- [tex]\(25(h + 75) = 150\)[/tex]

7. The correct equation that accurately represents the charges based on the given information is:
- [tex]\(75 + 25h = 150\)[/tex]

Thus, the correct answer is the first option:
[tex]\[ 75 + 25h = 150 \][/tex]