An electrician charges $30 for a house visit and $55 for each hour of work. If mrs.Firewalls was charged $222.50 for work, which can be used to find the number of hours that the electrician worked?

Respuesta :

The equation that will be used to find number of hours will be:

55h+30 = 222.50

Step-by-step explanation:

Let h be the number of hours

Given

Visit fee = $30

per hour fee = $55

Total amount = $222.50

The equation will be:

[tex]55h+30 = 222.50\\55h+30-30 = 222.50-30\\55h = 192.5[/tex]

Dividing both sides by 55

[tex]\frac{55h}{55} = \frac{192.5}{55}\\h = 3.5\ hours[/tex]

Hence,

The equation that will be used to find number of hours will be:

55h+30 = 222.50

Keywords: Linear equation, variables

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