the pencil was 190 millimeters long
cuz 1cm=10mm
2cm=20cm
3cm=30mm and on and on
hope that helps *smiles*
6. K=4
7. N=11
8. C=2
9. R=7
10. R=4
11. Y=1
12. R=7
13. N=7
You could make an infinite number of triangles.
Elimination Method:
5x - 4y = 6
-5x + 4y = -10
5x - 4y = 6
+ -5x + 4y = -10
————————-
0 = -4
This statement is false, so there is no solution to the system of equations.