180 ft long board is cut into 3 pieces. The second piece of board is twice as long as the first. The third piece of board is six times as long as the first.

Question

What is the length of the first piece of the board?

Answer 1

Let x = the first piece.

x + 2x + 6x = 180

9x = 180
x = ?

Answer 2

20

Answer 3

a 9 foot board is cut in two pieces . one is 3.5 feet longer than the other . how long is the longer piece