Answer:
11/23
Step-by-step explanation:
If there are a total of 23 students and 12 of these are boys, then the number of girls must be 23 - 12, or 11.
Then:
girls 11
----------- = ----------
total # 23
Answer:
7 seconds per song?
Step-by-step explanation:
Answer:
<h2>w² - 2(w)(1) + 1² = w² - 2w + 1 = (w - 1)²</h2>
Step-by-step explanation:
(a - b)² = a² - 2ab + b²
We have
w² - 2w = w² - 2(w)(1)
We must add 1²
w² - 2(w)(1) + 1² = (w - 1)²
Answer:
-3a-1/2b
Step-by-step explanation:
1/2 (2a+b) - (4a+b)= a+1/2b-4a-b = -3a-1/2b