Question

Joanna is driving from Orlando, FL to Atlanta, GA. The distance between Orlando and Atlanta is 430 miles. Joanna's average rate of speed is 60 mpg. The following function represents how many mile Joanna has left on her trip after t hours, f(t) = 430 - 60t. How many miles from Atlanta will Joanna have left to drive in 3 hours?

Answer 1

By inputting t=3 into the travel function f(t) = 430 - 60t, we found that Joanna will have 250 miles left to drive to Atlanta after 3 hours.

Step-by-step explanation:

To determine how many miles Joanna will have left to drive to Atlanta after 3 hours, we will use her travel function f(t) = 430 - 60t, where t is the time in hours. Plugging 3 into the function for t, we get f(3) = 430 - 60(3).

Now, we compute the result:

• f(3) = 430 - 180
• f(3) = 250

So after 3 hours, Joanna will have 250 miles left to drive to reach Atlanta.