Answer: 1) 
2) 
3) 13, 4) 10.
Step-by-step explanation:
Since we have given that
So, we need to find :
1) a + b is given by
2) 2a+3b is given by
3) |a| is given by
4) |a-b| is given by
Hence, 1) 2) 3) 13, 4) 10.
<h2>D. If subjects knew they were receiving an active treatment, researchers would not have known if any improvement was due to the new medication or to the expectation of <u>feeling </u>better. If the researchers knew which subjects received which treatments, they might have treated one group of subjects differently from the other group.</h2><h2 />
For your question... the answer would be D
Answer:
The answer is 0.60b + 0.30w = 150; 60 + 0.30w = 150
Step-by-step explanation:
Wei can purchase 300 balloons.
The model used for the problem is .
Step-by-step explanation:
Let the number of white balloons = x
The cost of blue balloons and white balloons are 60 cent = $0.6 and 30 cents = $0.3 respectively.
Wei purchased 100 blue balloons and have $150 to buy both balloons
Answer:
1000 (one thousand)
Step-by-step explanation:
Answer:
Step-by-step explanation:
