B because 3*4 equals 12
Then 4*3 equals 12
Answer:
10 ml of a 72% solution, 20 ml of a 54% solution
Step-by-step explanation:
x ml - amount of a 72% solution
y ml - amount of a 54% solution

(1)
(1) 2160-72y+54y=1800
y=20
x=30-y=30-20=10
Answer:
60
Step-by-step explanation:
see attachment for explanation
Answer:
Option 4:
Statement 1 and Statement 2 are theorems because they can be proved.
Answer:
There are no values of a that make the equation true. No solution
Step-by-step explanation: