Answer:
I am pretty sure it is 15.
Step-by-step explanation:
<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:
x =550
y=250
Step-by-step explanation:
.2x + .04y = 120
x + y = 800
To find the perimeter of a rectangle, add the lengths of the rectangle's four sides. If you have only the width and the height, then you can easily find all four sides (two sides are each equal to the height and the other two sides are equal to the width). Multiply both the height and width by two and add the results.
Answer:
56x6+3x
Step-by-step explanation:
3x+7x(8x5)
3x+56x6