Answer :
Answer:
The length of the first piece is 5 ft
The length of the second piece is 20 ft
The length of the third piece is 25 ft
Step-by-step explanation:
Let
x----> the length of the first piece
y ---> the length of the second piece
z ---> the length of the third piece
we know that
[tex]x+y+z=50[/tex] -----> equation A
[tex]y=4x[/tex] -----> equation B
[tex]z=5x[/tex]----> equation C
substitute equation B and equation C in equation A and solve for x
[tex]x+4x+5x=50\\10x=50\\x=5[/tex]
Find the value of y
[tex]y=4(5)=20[/tex]
Find the value of z
[tex]z=5(5)=25[/tex]
therefore
The length of the first piece is 5 ft
The length of the second piece is 20 ft
The length of the third piece is 25 ft