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If Edna drove s miles in t hours, which ...

If Edna drove s miles in t hours, which of the following represents her average speed, in miles per hour?

A

`(s)/(t)`

B

`(t)/(s)`

C

`(1)/(st)`

D

`st`

Text Solution

AI Generated Solution

The correct Answer is:
To find Edna's average speed in miles per hour, we can use the formula for speed, which is defined as: **Speed = Distance / Time** Given that Edna drove **s miles** in **t hours**, we can substitute these values into the formula. 1. **Identify the distance and time:** - Distance = s miles - Time = t hours 2. **Substitute the values into the speed formula:** \[ \text{Average Speed} = \frac{\text{Distance}}{\text{Time}} = \frac{s \text{ miles}}{t \text{ hours}} \] 3. **Simplify the expression:** - The average speed can be expressed as: \[ \text{Average Speed} = \frac{s}{t} \text{ miles per hour} \] Thus, the expression that represents Edna's average speed in miles per hour is: \[ \frac{s}{t} \] **Final Answer:** The correct option is **a) \(\frac{s}{t}\)**. ---
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