Posted by Nina on Sunday, November 21, 2010 at 2:30pm.
A 384-m wire is cut into three pieces. The second piece is 3 m longer than the first. The third is four-fifths as long as the first. How long is each piece?
- Math - Reiny, Sunday, November 21, 2010 at 2:33pm
first ------> x
second ----> x+3
third -----> (4/5)x
solve x + x+3 + (4/5)x = 384
I suggest multiplying each term by 5, then it becomes real easy.
- Math - Bosnian, Sunday, November 21, 2010 at 5:29pm
F-lenght of first size
S-lenght of second size
T-lenght of third size
2F+(4/5)F=381 Multiply with 5
14F=1905 Divide with 14
Answer this Question
- algebra - A 384-m wire is cut into three pieces. The second piece is 3 m longer ...
- Algebra - A 180-m wire is cut into three pieces. The third piece is 20 m longer ...
- geometry - how many inches long is the radius of the largest circle that can fit...
- Math word problem - I know the answer, but is there a formula to show work? Amy ...
- Crocket - A 143m wire is cut into three pieces. The second is 3m longer than the...
- Math - A board, 32 cm long is cut into three pieces such that the second piece ...
- math - a 27 inch board is to be cut into three pieces so that the second piece ...
- math - A cable 40 feet long is cut into three pieces so the length of the second...
- math - a wire 54cm long is cut into three pieces. the second piece is twice the ...
- Algebra - 480-mm pipe is cut into three pieces. the second piece is three times ...