+0  
 
+3
105
3
avatar+621 

John is biking at a rate of 15 mi/h. There are 5280 ft in 1 mi. On average, how many feet does John travel in 1 minute?

mathtoo  Jun 6, 2018
 #1
avatar+3197 
+3

Solution:

Since there are 5280ft in 1 mile, we can find how many feet are in 15 miles.

 

Converting miles into feet, we have \(5280*15=79,200 \)feet.

 

So, he travels 79,200 feet in 1 hour or 60 minutes.

 

Since they're asking us to find how many feet he can travel in 1 minute, we can easily do: \(\frac{79,200}{60}=\boxed{1,320} \)

feet.

 

 

smileysmiley

tertre  Jun 6, 2018
 #2
avatar+13088 
+3

Via dimensional analysis solution:

 

15  m/hr  x  1/60 hr/min  x  5280 ft/m  = 1320 ft/min       (as Tertre found)

ElectricPavlov  Jun 6, 2018
 #3
avatar+90141 
+2

Here's one more way :

 

60 mph  = 88 ft/sec

 

So

 

15 mph  = 22 ft/ sec

 

So...in 60 seconds we have    60 * 22  =  1320 ft

 

 

 

cool cool cool

CPhill  Jun 6, 2018

37 Online Users

avatar
avatar
avatar

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.