Goldie goldfish, a speed swimmer, loves to race around the park’s pond, which is 0.5 miles around. If she can swim 20 laps around the track in 2 hours, what is her average speed?

Her average speed is 5 miles per hour.

Explanation:

Average speed is the ratio of total distance travelled in particular time.

The park's pond is 0.5 miles around.

She can swim 20 laps, it means she can swim total = 20 × 0.5

                                                                                     = 10 miles.

Time taken by her to complete the track = 2 hour

Now, Average speed =

                                   =

                                   = 5 miles/hour.

5 miles/hour

Explanation:

S = D/T = 20 L x 5 M = 10

20 x 5 = 10

10 / 2 = 5 miles / hours

distance = 150m

displ = root (50 ^2 + 100^2)

root(2500+10000)

root 125000