please explain how to write the unit rate as a fraction example: 25 feet per second
Do you mean "25 feet/second"? It's almost certainly a measure of speed, expressed as the number of feet travelled divided by the number of seconds it took to travel it.
how long it takes to complete 240 miles with a speed of 50m/h
To write a unit rate as a fraction, you need to express the ratio in terms of the given unit, with a numerator and denominator. Let's take the example of 25 feet per second:
1. First, identify the given units. In this case, we have feet and seconds.
2. Consider the number in the numerator, which represents the quantity being measured. In this example, it is 25.
3. Write the number in the numerator followed by the unit it represents, which is feet. So, we have 25 feet.
4. Next, write the number in the denominator, which represents the unit of time. In this example, it is in seconds. So, we have 1 second.
5. Lastly, write the ratio as a fraction, with the numerator and denominator separated by a slash (/). Therefore, the unit rate can be expressed as 25 feet/1 second.
However, it is important to note that this fraction can be simplified further if necessary. In this case, the fraction is already in its simplest form.