Answer:
The first piece is 5 inches long, while the second is 15 inches and the third one is 20 inches.
Step-by-step explanation:
To determine the length of the 3 pieces, knowing that the total of the board is 40 inches, and that the second measures 3 times more than the first and the third measures 4 times more than the first, the following equation must be performed:
X + 3X + 4X = 40
8X = 40
X = 40/8
X = 5
Therefore, the first piece is 5 inches long, while the second is 15 inches and the third 20 inches.
I hope this helps you
x.x-2.3x+9-21=0
(x-3)^2-21=0
(x-3)^2=21
Step-by-step explanation:
< A = < D
3x_10 = 2X+10
X=20
225 percent
Step-by-step explanation:
150 is the whole and 150 divided by 150 is 1.
1 whole is 100 percent
20 because it is counting by fives (5,10,15,20) and 5x4=20
