We appreciate your visit to An electrician charges a service charge of 40 plus 25 per hour If the final bill for an electrical repair is 170 which equation represents. This page offers clear insights and highlights the essential aspects of the topic. Our goal is to provide a helpful and engaging learning experience. Explore the content and find the answers you need!
Answer :
Final answer:
Option 1: 25(h + 40) = 170 represents the cost for h, the number of hours.
Explanation:
Let "h" be the number of hours of work done by the electrician. From the given information, we know that the electrician charges a service charge of $40, plus $25 per hour of work. This can be represented mathematically as:
Cost = 25h + 40
If the final bill for an electrical repair is $170, we can set up an equation to solve for "h". Substituting the given values, we get:
170 = 25h + 40
Solving for "h", we get:
25h = 130
h = 5.2
Therefore, the number of hours of work done by the electrician is 5.2 hours.
Now, we need to find which of the given options represents the original equation for the cost of work done by the electrician. We can plug in the value of "h" we found to see which equation holds true.
Option 1: 25(h + 40) = 25(5.2 + 40) = 1070 which is not equal to the actual final cost of $170.
Option 2: 40(h + 25) = 40(5.2 + 25) = 1180 which is not equal to the actual final cost of $170.
Option 3: 40 + 25h = 40 + 25(5.2) = 180 which is not equal to the actual final cost of $170.
Option 4: 25 + 40h = 25 + 40(5.2) = 205 which is not equal to the actual final cost of $170.
Therefore, the option that represents the correct equation is:
Option 1: 25(h + 40) = 170
This equation simplifies to:
25h + 1000 = 170
25h = 70
h = 2.8
Therefore, the number of hours of work done by the electrician is 2.8 hours, and the equation 25(h + 40) = 170 represents the cost for "h", the number of hours.
Being able to set up and solve equations is an important skill in mathematics and is useful in many real-life situations, such as in calculating costs for services.
Learn more aboutrepresents
brainly.com/question/31291728
#SPJ11
Thanks for taking the time to read An electrician charges a service charge of 40 plus 25 per hour If the final bill for an electrical repair is 170 which equation represents. We hope the insights shared have been valuable and enhanced your understanding of the topic. Don�t hesitate to browse our website for more informative and engaging content!
- Why do Businesses Exist Why does Starbucks Exist What Service does Starbucks Provide Really what is their product.
- The pattern of numbers below is an arithmetic sequence tex 14 24 34 44 54 ldots tex Which statement describes the recursive function used to..
- Morgan felt the need to streamline Edison Electric What changes did Morgan make.
Rewritten by : Barada
