Question

Yesterday, the price of a gallon of gas at five gasstations was $3.72, $3.87,$3.78, $4.09, and $3.99, respectively, but today each gas station raised itsprice by $0.08. What is today's mean price of a gallon of gas at the fivestations?• A. $3.89B. $4.05C. $3.97D. $3.81

Answer 1

Explanation:

If the price of a gallon of gas at five gas stations was $3.72, $3.87, $3.78, $4.09, and $3.99, respectively, the sum of these prices will be:

$3.72\text{ + 3.87 + 3.78 + 4.09 + 3.99 = 19.45}$

Now, if today each gas station raised its price by $0.08, we have an overall increase of:

$0.08\text{ x 5 = 0.40}$

Then, the new total price of the 5 gasoline stations with this increase will be

$19.45\text{ + 0.40 = 19.85}$

Thus, today's mean price of a gallon of gas at the five stations would be:

$\frac{19.85}{5}=3.97$

We can conclude that the correct answer is:

Answer:$3.97