SOLUTION: A metal bar ten feet long weighs 128 pounds. What is the weight of a similar metal bar that is two feet four inches long?

Algebra ->  Customizable Word Problem Solvers  -> Numbers -> SOLUTION: A metal bar ten feet long weighs 128 pounds. What is the weight of a similar metal bar that is two feet four inches long?       Log On

Ad: Over 600 Algebra Word Problems at edhelper.com


   



Question 997038: A metal bar ten feet long weighs 128 pounds. What is the weight of a similar metal bar that is two feet four inches long?

Found 2 solutions by rfer, stanbon:
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
10/128=2.33/x
10x=128*2.33
x=298.24/10
x=29.824lbs

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
A metal bar ten feet long weighs 128 pounds. What is the weight of a similar metal bar that is two feet four inches long?
-----
Use a proportion::
weight/length = weight/length
------
w/(2 1/3 ft) = 128/(10 ft)
------
w = (7/3)(128/10)
weight = 29.87 lbs
----------
Cheers,
Stan H.
------