Question

keisha rented a truck for one day. there was a base fee of $10.25, and there was an additional charge of 25 cents for each mile driven. the total cost, c (in dollars), for driving x miles is given by the following function. c(x)=0.25x + 10.25 what is the total rental cost if keisha drove 20 miles? dollars

Explanation:

Step1: Identify the function and input

The cost function is \( C(x) = 0.25x + 10.25 \), and we need to find the cost when \( x = 20 \) (since Keisha drove 20 miles).

Step2: Substitute \( x = 20 \) into the function

Substitute \( x = 20 \) into \( C(x) \):
\( C(20) = 0.25(20) + 10.25 \)

Step3: Calculate the first term

First, calculate \( 0.25(20) \). \( 0.25 \times 20 = 5 \).

Step4: Add the base fee

Now, add the base fee of 10.25 to the result from Step 3: \( 5 + 10.25 = 15.25 \).

Answer:

15.25