The total charge for the computer repair service is calculated by multiplying the number of hours worked by the hourly rate of $50 and adding the mileage fee. The formula is y = 50x + y, where x is the hours worked and y is the mileage fee.
To calculate the total charge for a computer repair service that charges $50 per hour and an additional mileage fee, the following linear equation can be used:
y = 50x + y
Here, x represents the number of hours worked, and the variable y represents the mileage fee. To get the total cost, multiply the number of hours worked (x) by the hourly rate which is $50, and then add the mileage fee (y) to this product.
For example, if the computer repair person works for 2 hours and the mileage fee is $30, the total cost would be:
y = 50(2) + 30 which simplifies to y = 100 + 30, so y = $130 in total.