I drove to the beach at a rate of $40$ miles per hour. If I had driven at a rate of $55$ miles per hour instead, then I would have arrived $25$ minutes earlier. How many miles did I drive?

call the distance in miles "d". Call the time in minutes "t". speed = d/t

40 mph = d/t

55 mph = d/(t-25)

can you solve the 2 equation 2 variable?

Then the answer will be the d, because it is asking for the distance.