an electrician charges (f) an initial fee of $20 and then $30 per hour. Which linear equation represents this if (h) represents hours

clearly, f = 20+30h

The linear equation that represents the electrician's charges can be written as:

Cost = Initial fee + Hourly rate * Number of hours

In this case, the initial fee is $20 and the hourly rate is $30. So, the equation becomes:

Cost = $20 + $30 * h

Therefore, the linear equation that represents the electrician's charges is:

Cost = 20 + 30h

To represent the relation between the charges and the number of hours, we can use the formula:

Charges = Initial fee + Hourly rate * Hours

In this case, the initial fee is $20 and the hourly rate is $30. Let's substitute these values into the formula:

Charges = $20 + $30 * Hours

Simplifying further, we get:

Charges = $20 + $30h

Therefore, the linear equation representing this situation is:

Charges = $20 + $30h

how do you know