Answer: Addition property of equality
Step-by-step explanation: You added the x to the other side, which is clearly using addition. Hope this help!
Answer:
d. The average is equal to 12 ounces.
Step-by-step explanation:
In this problem, the drink filling machine must be perfectly calibrated at 12 ounces since it needs to be shut down in cases of overfilling (mean > 12 ounces) and underfilling (mean < 12 ounces). Therefore, the correct approach would be to test if the mean is 12 ounces and the correct set of hypothesis would be:

The correct alternative is d. The average is equal to 12 ounces.
it's an equation so we got
Answer:
maybe it shows a figure above? Try contacting your teacher?
Step-by-step explanation:
Answer:
30% of picking a red marble, it is likely to occur.
Step-by-step explanation:
50% of green and 20% of blue. The most logical is to add to 100%. 50+20=70, 100-70=30. Thats the 30% of red. Since red is 10% than blue, it is likely to get a red marble.