a barrel contains 162 gallons of gasoline and is being filled at a constant rate of 6 gallons per day. write an equation that models the number of gallons, g, after t days.

Question

anonymous · Answer

the equations that I came up with was g=6t or g=162-6t, I need to know if I am right on either one of these or completely wrong

anonymous · Answer

@cahayes9498  for your first, after 0 days, we'd have only 0 gallons -- but aren't we supposed to start with 162? for your second, why is our amount of gasoline decreasing? aren't we *filling* it?

anonymous · Answer

I have to write an equation that models the number of gallons(which is to be represent by G), after T days

anonymous · Answer

@Jhannybean I think it only wants them to model how much gasoline will be present if they start with 162 and add 6 gallons each day for $t$ days

anonymous · Answer

@cahayes9498 your second equation is close, but are you sure you want to *lose* 6 gallons a day by subtracting? Surely you should be *adding* 6 gallons everyday, right?

jhannybean · Answer

I see where I went wrong.

anonymous · Answer

162 is not the total amount of gallons, but the initial amount. Therefore you would want to add to the initial amount with 6t.

jhannybean · Answer

Yeah...that's where i messed up.

anonymous · Answer

so it would be g=162+6t