The distance of one lap around a school track is \frac{1}{4} mile. sherrie walks 5 laps around the track. how many more laps must sherrie walk to reach a total distance of 3.5 miles?

Sherrie must walk 9 more laps.

Step-by-step explanation:

You know that one lap around the school track is or 0.25 miles.

Let be the distance in miles that Sherrie walks in 5 laps.

To calculate     you need to multiply 0.25 miles by 5. Then:

Let be   the distance left that Sherrie must walk to reach a total distance of 3.5 miles.

To calculate    you need to subtract 3.5 miles and 1.25 miles. Then:

Let be the number of more laps that  she must walk to reach a total distance of 3.5 miles.

If she needs to walk 2.25 miles more to reach a total distance of 3.5 miles and 1 lap is 0.25 miles, then "x" is:

She must walk 9 more laps.

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step-by-step explanation: