how to solve problem-car with 13.45 gallon tank gets 28 miles/gallon. If gas costs 3.543/gallon, how much it will cost to travel 1550 miles
Just use dimensional analysis to solve problems like this.
(28 mi/gal)*# gal = 1550 mi.
Solve for # gal.
Then $3.543/gal x # gal = $ cost.
I assume that is $/gal. You omitted the unit.
The 13.45 gallon tank is superfluous information.
To solve this problem, we need to determine how many gallons of gas will be used to travel 1550 miles and then multiply that by the cost per gallon.
First, let's calculate how many gallons of gas will be used to travel 1550 miles. We know that the car gets 28 miles per gallon, so we can divide the total distance by the fuel efficiency:
1550 miles / 28 miles/gallon = 55.36 gallons
Next, we will calculate the cost of the gas. We know that the cost per gallon is $3.543. So, we can multiply the number of gallons by the cost per gallon:
55.36 gallons * $3.543/gallon ≈ $195.99
Therefore, it will cost approximately $195.99 to travel 1550 miles.