Question

A lab technician cuts a 12 inch piece of tubing into two pieces in such a way that

one piece is 2 times longer than the other. How long are the two pieces?​

Answer 1

Answer:

1 piece is 4 inch long and the other is 8 inch long

Step-by-step explanation:

As we know one piece is twice the other

so x+y=12

and  x=2y

so x=4 and y=8

then  

lets check

4+8=12

so one piece is twice the other

Answer 2

Given - Length of tube

Find - Length of two pieces

Solution - Let the length of one piece be x. So, the length of other piece will be 2x. Representing the given information in mathematical equation -

x + 2x = 12

Performing addition on Left Hand Side

3x = 12

Shifting 3 to other side of equation and performing division

x = $\frac{12}{3}$

Performing division

x = 4

Length of short piece = 4 inch

Length of long piece = 2x

Length of long piece = 2*4

Length of long piece = 8 inch.

Hence, the length of two pieces are 4 inch and 8 inch.