Donna is running a race. She runs at a speed of 7 miles per hour for 17.5 miles. For how many hours does she run?

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UpStudy AI · Accepted Answer

1. Let $$ t $$ represent the time in hours.
2. We use the formula:
   $$
   \text{Speed} = \frac{\text{Distance}}{\text{Time}}
   $$
   Rearranging for time, we have:
   $$
   t = \frac{\text{Distance}}{\text{Speed}}
   $$
3. Substitute the given values:
   $$
   t = \frac{17.5}{7}
   $$
4. Compute the division:
   $$
   t = 2.5
   $$
   
Donna runs for $$ 2.5 $$ hours.
Donna runs for 2.5 hours.

Donna is running a race. She runs at a speed of 7 miles per hour for 17.5 miles. For how many hours does she run?

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