Question

6. Two friends take a 3000-mile cross-country trip together, but they drive their own cars. Car A has a 12-gallon gas tank and gets 40 miles per gallon, while car B has a 20-gallon gas tank and gets 30 miles per gallon (Assume both drivers pay $2.55 per gallon of gas.) a) What is the cost of one tank of gas for each car ? b) How many tanks of gas does each car use for the trip? c) How much does each driver pay for gas for the trip?

Answer 1

Cal A No. of gallons required to complete trip Total distance mileage 300 40 = 75 gallons. capacity of tanka er izgallony Total required gas No. of tanks required Capacity of tanks 75 12 = 6.25 for cal 6.25 tanks all required to complet trip. of 3000 miles Cal B No. of gallows of gas required to complete tei- Tatal distance mileage 3000 30 = 100 gallons

capacity of carb tank - zo gallows No of fank required = Total required gas capacity too 20 =s .: For B Stank of gallons all required @ CalA Total No. of gallons required to complete wie Total distance mileage 3000 400 = 75 gallons 2.55 cost pel one gallon 191.254 cost for 75 gallon= 2-55875 = calB Talal distance 3000 Total No. of gallon required miteag 30 -100 gallons cost for one gallon = 2.554 = 2.55*oo = 2558 gost for 100 gallons