Before leaving, you stop to fill up your car with gas. You pump a total of 22.35 gallons. The cost per gallon is $1.79. What is the total cost to fill up your tank?(2 points)

Responses

$40.01
$40.01

$22.35
$22.35

$24.14
$24.14

$12.49
$12.49
Question 2
One of your friends gives you $31.56 to help cover the cost of the gas you pumped. How much money do you still owe?(2 points)
Responses

$8.45
$8.45

Nothing, this covered the total cost of gas.
Nothing, this covered the total cost of gas.

$9.45
$9.45

$71.57
$71.57
Question 3
According to your car's navigation system, you need to drive 448.6 miles to reach your destination. You have volunteered to drive the first 1/4
of the trip. How many miles will you be driving?(2 points)
Responses

112.5 miles
112.5 miles

224.3 miles
224.3 miles

110 miles
110 miles

112.15 miles

1 answer

Let's go through each question one by one:

Question 1: To find the total cost to fill up your tank, you can multiply the number of gallons pumped by the cost per gallon. \[ \text{Total Cost} = \text{Gallons} \times \text{Cost per Gallon} = 22.35 , \text{gallons} \times 1.79 , \text{dollars/gallon} = 39.9515 , \text{dollars} \] Rounding this to two decimal places gives you $39.95. However, if we look at the options, the closest match is \($40.01\). Thus, the answer for Question 1 is:

  • $40.01

Question 2: To calculate how much money you still owe after your friend gave you $31.56: \[ \text{Amount Owed} = \text{Total Cost} - \text{Friend's Contribution} = 39.95 - 31.56 = 8.39 \] Rounding this gives you about $8.39, but this isn't an option. However, one of the options might have a small rounding error depending on the total cost used. If you initially consider the answer obtained in Question 1, it could be considering a previous calculation. Based on the options given, the best answer is:

  • $8.45

Question 3: To find out how many miles you will drive if you do 1/4 of the trip: \[ \text{Miles Driven} = \frac{448.6 , \text{miles}}{4} = 112.15 , \text{miles} \] The correct answer for Question 3 is:

  • 112.15 miles

To summarize:

  1. $40.01
  2. $8.45
  3. 112.15 miles