The formula is 45T = D, and in 2.5 hours the train will have traveled 112.5 miles.
Functions
Given 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 = D
- 45 x 2.5 = D
- 112.5 = D
Therefore, the formula is 45T = D, and in 2.5 hours the train will have traveled 112.5 miles.
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