Shelly hopped onto her bicycle and pedaled to the park at 14 miles per hour. Then she whizzed back at 20 miles per hour. If the

Question

kupik [55]

2 years ago

12

Shelly hopped onto her bicycle and pedaled to the park at 14 miles per hour. Then she whizzed back at 20 miles per hour. If the

total trip took 3 2/5 hours how far was it to the park?

Mathematics

1 answer:

LekaFEV [45] · Answer 1 · 2022-01-15T09:16:48+03:00

LekaFEV [45]2 years ago

6 0

We know that
speed=distance/time
distance=speed*time

in this problem
speed1=14 miles/hour
speed2=20 miles/hour
average speed=[14+20]/2-----> 17 miles/hour
time=3 2/5 hour-----> (3*5+2)/5----> 17/5 hours

distance=17*(17/5)----> 57.8 miles

the answer is
57.8 miles