Mr. Wilson wants to park his car in the parking garage. To find the cost he uses the equation D=3H+6 where D represents the total amount in dollars charged for parking a car for H hours if Mr. Wilson spent $30 how many hours did he park in the parking garage

8 hours

Step-by-step explanation:

You know that Mr. Wilson uses the following equation to find the cost:

Then, if Mr. Wilson spent $30, you can follow these steps in order to calculate how many hours he parked in the parking garage:

1. You need to substitute  into the given equation:

2. Now, you must solve for "H":

Therefore, based on the result, you can conclude that Mr. Wilson parked his car in the parking garage for 8 hours.

1 x=22.52

2: 65/39=604+39x

65x-39x=604

26x=604

x=604/26

×=23.23

6e14 is the answer.