Final answer:
To find the number of miles Eric drove the truck, subtract the base fee from the total amount paid and divide by the additional charge per mile. Eric drove the truck for 201 miles.
Step-by-step explanation:
To find the number of miles Eric drove the truck, we can subtract the base fee from the total amount he paid and divide the result by the additional charge per mile. Let's set up the equation:
Total amount paid - Base fee = Additional charge per mile x Number of miles
Substituting the given values: $190.80 - $19.95 = $0.85 x Number of miles
Simplifying further: $170.85 = $0.85 x Number of miles
To find the number of miles, we can divide both sides of the equation by $0.85:
Number of miles = $170.85 ÷ $0.85
Solving this equation, we get:
Number of miles = 201
Therefore, Eric drove the truck for 201 miles.