He can cut 20 1-meter pieces since 1 decametre is equal to 10 meters. So you divide 20 meters by 1 which will give you 20 pieces.
1 decametre = 10 meters
2 decametres = 10 meters x 2
= 20 meters
Answer:
x =-27
Step-by-step explanation:
X/3= -9
or,X=-9×3(cross multiplication)
or, X=-27
Second graph.
<h2>
Explanation:</h2>
Hello! You haven't provided any relationship, but I found it on the internet and it is the table attached below. The point-slope form of the equation of a line is given by:

So:

Finding the slope:

So the equation of the line is:

From the graphs, only option 2 and 4 have negative slope and only option 2 passes through 
Conclusion: Correct option is second graph.
<h2>Learn more:</h2>
Parallel lines: brainly.com/question/12169569
#LearnWithBrainly
Answer:

Step-by-step explanation:


B because 3*4 equals 12
Then 4*3 equals 12