Question

I have a Math Quiz for You Mathmatizers !!! I have a 72" 2x4 with 2 cuts/3 pieces The 2nd piece is twice as long as the 1st piece, The 3rd piece is twice as long as the 2nd piece. How long is the 1st piece?

Answer 1

Answer:

the answer is 4

Step-by-step explanation:

let x= length of the first piece.

second piece is 2x, right

third piece x+5, right

Total, in x-talk, is x + 2x + x+5 and that equals 21 feet, right.

Combine like terms: 4x + 5 = 21. Still with me?

So 4x = 16 (do you see why?)

 

So, what x must x be is 4