Answer:
x = 9 y = 3 (9,3)
Step-by-step explanation:
3x - 5y = 12
3(3y) - 5y = 12
9y - 5y = 12
4y = 12
4y/4 = 12/4
y = 3
x = 3(3)
x = 9
CHECK:
3(9) - 5(3) = 12
27 - 15 = 12
12 = 12
1) Gold
2) iron
3) mercury
4) potassium
5) Sodium
6) lead
7) tin
8) antimony
9) Tungsten
10) copper
11) silver
the centroid i think
