Answer:
The picture is black
Step-by-step explanation:
F^-1= positive or negative x square root
1. Let
x = first piece
y = second piece
z = third piece
2. Arrange it into an equation
x + y + z = 50
3. The second piece is 4 times as long as the first piece so 4x = y.
The third piece is 5 times as long as the first piece so 5x = z
4. Now substitute the values
x + (4x) + (5x) = 50
5. Simplifying makes the equation into 10x = 50
6. Do the opposite of multiplying to get rid of the 10 which is dividing. Divide 50 by 10.
x = 50/10
x = 5
7. Now substitute x in 4x and 5x
4 * 5 = 20
5 * 5 = 25
8.
x = 5
y = 20
z = 25
Answer
c
Step-by-step explanation:
i calculate it since 2 5/6= 17/6 add 8/6+9/6