Using a Prius @ 51 mpg, the cost is $52.94.
miles ÷ (miles/gallon) * ($/gallon) = miles * (gallons/mile) * ($/gallon) = (miles * gallons * $) / (miles * gallons) = $ So divide 560 mi by the vehicle's fuel economy, then multiply the quotient by the fuel cost.
480 miles @ 20 miles per gallon = 24 gallons needed 24 gallons @ $3.75 per gallon = $90
The cost of 94.7 gallons, approximately.
1,600 miles at 16 miles per gallon = 100 gallons.100 gallons x $4.50 = $450.00
It will cost you 600/28 = 21.4286 gallons. You have to decide the cost per gallon.
You would use 7.96 gallons, so that would cost 19.91 to drive.
2100 miles at 21 miles per gallon = 2100/21 gallons = 100 gallons. 100 gallons at 3.80 per gallon = 100*3.80 = 380
The idea is to 1) Divide the miles by the miles-per-gallon, to get the number of gallons, and then 2) Multiply the number of gallons by the price per gallon.
1,200 miles at 12 miles per gallon = 100 gallons.100 gallons at $3.50 per gallon = $350 .
515 miles divided by 22mpg is 23.4 gallons used. 23.4 gallons times 2.50 a gallon is 58.50.
460/24 = 191/6 gallons The cost is (191/6) times (the cost of one gallon).
1500 miles @ 25 miles per gallon = 1500/25 = 60 gallons 60 gallons @ 3.50 per gallon = 60*3.50 = 210