The cost of gasoline in dollars at a gas station varies directly with the number of gallons of gasoline that you pump. It costs $17.42 to fill your 13 gallon tank at a station in Sacramento.
1. Write a direct variation model that relates the number of gallons g to the total cost c (in dollars) to fill the tank.
2. Use your model from Excercise 1 to determine how much it will cost to fill-up a car with a 19-gallon tank.
3. If you decide to buy a higher grade of gasoline, what will change in your model?
Can you help me out with number 2 please?
I still dont get it!
norm_paperman69
May 28, 2010 at 3:02 am
Let x be the price for 1 gallon of gasoline.
gx=c
You take it from there…
bob
May 28, 2010 at 3:52 am
Let x be the price for 1 gallon of gasoline.
gx=c
You take it from there…
and you can do the rest