A person car uses 5gal. Of gas to travel 132 miles.He has 3 gal. Of gasoline in the car,and he wants to know how much more gasoline he will need to drive 300 miles.
(300/132)*5 - 3
To find out how much more gasoline the person will need to drive 300 miles, we can use the concept of ratios.
First, let's calculate the fuel efficiency of the car. We know that the car uses 5 gallons of gas to travel 132 miles. We can set up a ratio:
5 gallons / 132 miles = x gallons / 300 miles
To find x, the amount of gasoline needed to drive 300 miles, we can use cross-multiplication:
5 * 300 = 132 * x
1500 = 132x
Now, divide both sides of the equation by 132:
1500 / 132 = x
x ≈ 11.36
So, the person will need approximately 11.36 gallons of gasoline to drive 300 miles. Since he already has 3 gallons in the car, he will need an additional:
11.36 gallons - 3 gallons = 8.36 gallons
Therefore, the person will need approximately 8.36 gallons more gasoline to drive 300 miles.