## raleung2 3 years ago express 40lbs. per square ft. in pounds per square inch

1. raleung2

2. brinethery

40lbs/ft^2 *((1ft)^2/(12in)^2 = 40 lbs/ft^2 *(1ft^2/144in^2)

3. brinethery

@raleung2 bossy?

4. raleung2

no D:

5. brinethery

write that down on a piece of paper with horizontal division lines. See how the "ft^2" cancels out? You just end up dividing 40 by 144.

6. raleung2

wait im confused. what the answer?

7. brinethery
8. raleung2

soo whats the answer?

9. brinethery

10. brinethery

I know you can figure this out!

11. raleung2

im trying... LOLOL

12. brinethery

With any of these conversion problems, you get it so the units you don't want cancel out. Just divide 40 by 144 and your answer will be in lb/in^2

13. brinethery

Look up unit conversions in google and search by "videos."

14. raleung2

im confused? just tell me the answer/

15. brinethery

Do you need to know this for an exam? Fine, here it is. 0.278 lb/in^2. Can you watch at least one video on how to do these?

16. raleung2

okay and yes/