cell Phone plan A costs $70 per month and comes with a free $500 phone, cell phone B costs $50 per mouth but does not come with
1 answer:
You might be interested in
Let the time to hike up the hill = t
As given that the total time time up and down is 3 hrs, therefore
The time down the hill = 3-t
The distance up and down is the same.
Distance = speed * time
t=1.8
Hence, time taken to uphill = 1.8 hours
Time taken to down hill = 3-18 = 1.2 hours