A train travels at a constant rate of 45 miles per hour.a. What is the distance, d, in miles, that the train travels in t hours?b. How many miles will it travel in 2.5 hours?0

The formula is 45T = D, and in 2.5 hours the train will have traveled 112.5 miles.FunctionsGiven that a train travels at a constant rate of 45 miles per hour, to determine the function that shows what is the distance D in miles, that the train travels in T hours, and determine how many miles will it travel in 2.5 hours, we must perform the following calculation:45 x T = D45 x 2.5 = D112.5 = DTherefore, the formula is 45T = D, and in 2.5 hours the train will have traveled 112.5 miles.Learn more about functions in