mr lopez must drive 340 miles to attend an origami seesion.his car averages 28 miles per gallon and so far he has traveled 102 miles. how much gas is left if he wants to continue without stopping ?

340 - 102 = 238

238/28 = 8.5 gallons are needed, but since the original amount of gallons is not known, we don't know "how much gas is left."

To calculate how much gas Mr. Lopez has left, we need to find out how many more miles he can travel with the remaining gas.

First, we calculate the remaining distance he needs to travel: 340 miles - 102 miles = 238 miles.

Next, we calculate how many gallons of gas he has already used: 102 miles / 28 miles per gallon = 3.64 gallons (rounded to two decimal places).

To determine how many more miles he can travel, we need to subtract the distance already traveled from the total distance the car can cover with one full tank of gas.

Let's assume the car has a standard tank capacity of 14 gallons (you can adjust this number based on the specific car's fuel tank capacity).

Therefore, the total distance the car can cover on a full tank is: 28 miles per gallon * 14 gallons = 392 miles.

Now, we calculate the remaining distance the car can cover: 392 miles - 102 miles = 290 miles.

So, Mr. Lopez has enough gas to travel an additional 290 miles.

By subtracting the distance he has already traveled (102 miles) from the total distance he needs to travel (340 miles), we determined that he has 238 miles left. However, based on the car's fuel efficiency, he can only travel another 290 miles before running out of gas.