A mechanic charges $60 to determine what repairs are needed to a car and $45 per hour to repair the car if the repairs on your car take three hours what would your total bill be

$195

Step-by-step explanation: The mechanic charges 45 per hour, so that can be translated to 45x and then add an additional 60 that is required. This translates to 45x+60 where x equals hours. So if you plus in 3 hours, your total will be 195.

195 dollars

Step-by-step explanation:

first we know that the initrail cost to is going to be $60.

second we need to figure out how much it will cost fot the repair. we can do this by multipling 45 by 3. this gives us 135.

finally we can add 135 with 60 to get 195. then we add what unit we are working with and we are done! $195

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this