Answer:
10a = 30
Step-by-step explanation:
By using elimination:
4a + 2z = 10
-2(3a + z) = -2(-10)
4a + 2z = 10
6a - 2z = 20
2z and -2z cancel out
10a = 30
a = 3
They are asking for 10a, so 10 (3) = 30.
Answer:
answer is down below
Step-by-step explanation:
9 to 16
Answer:
1,800
Step-by-step explanation:
30 times 60 is what ? 1,800