A drinking straw of length 21cm is cut into 3 pieces the length of the first piece is x cm the second piece is 3 cm shorter than the first piece the third is twice as long as the first piece state term of x to represent the sum of of the length {2} write an expression in the term of x , to represent the sum of the length of the three piececs of drinking straw {3} HENCE CALCULATE THE VALUE OF X
x + x - 3 + 2x = 21
4x - 3 = 21
4x = 24
x = ?
To find the value of x, we are given that the length of the first piece is x cm.
The second piece is 3 cm shorter than the first piece, so its length would be (x - 3) cm.
The third piece is twice as long as the first piece, so its length would be (2x) cm.
To represent the sum of the length of the three pieces using x, we can add up the lengths of each piece:
Sum of the lengths = x + (x - 3) + (2x)
Now, let's simplify the equation:
Sum of the lengths = 4x - 3
Since we are given that the sum of the lengths is 21 cm, we can set up the equation:
4x - 3 = 21
To calculate the value of x, we can solve this equation:
4x = 24
x = 6
Therefore, the value of x is 6 cm.