The answer would be 5.25 CDs. This is right because 420/80 is 5.25.
Hope this helps!
Answer:
1545.66 rad/h
Step-by-step explanation:
We need to find the angular velocity in rad/hour when wind is moving with a speed of 4.1 rpm.
We know that,
1 revolution = 2π rad
1 hour = 60 minute
So,
So, the required angular velocity is 1545.66 rad/h.
Answer: x≤4
Step-by-step explanation:
6x≤27−3
2 Simplify 27-327−3 to 2424.
6x\le 246x≤24
3 Divide both sides by 66.
x\le \frac{24}{6}x≤
6
24
4 Simplify \frac{24}{6}
6
24
to 44.
x\le 4x≤4
Answer:
Step-by-step explanation:
Let's solve this problem step-by-step. The library had 1,500 books in 2011. The ratio of books in 2011 and in 2012 is 1:2. Therefore, let the number of books in 2012 be .
We have the following proportion:
Therefore, there were 3,000 books in 2012. The ratio of books in 2012 and in 2013 is 2:5. Let the number of books in 2013 be .
We have:
Therefore, there were 7,500 books in 2013.