Answer:
20 is not a perfect square.
21 is not a perfect square.
24 is not a perfect square.
25 is a perfect square.
<span>A would be 6/7 x 28kg = 24 kg
B would be 4/7 x 28kg = 16 kg
so the difference of the masses is 24 - 16 = 8kg</span>
False. The sum is -4:
-5 + -2 = -7
-7 + 3 = -4
Answer:
First, add the two mixed numbers together.
![1 + 2 = 3](https://tex.z-dn.net/?f=1%20%2B%202%20%3D%203)
![4/7 + 3/14 = 11/14](https://tex.z-dn.net/?f=4%2F7%20%2B%203%2F14%20%3D%2011%2F14)
Combine the equation and number.
![3 + 11/14 = 3 \frac{11}{14}](https://tex.z-dn.net/?f=3%20%2B%2011%2F14%20%3D%203%20%5Cfrac%7B11%7D%7B14%7D)
4 2/7
Therefore, the answer is 1/2
1/620 is the simplest form of 2/1240
all you had to do was simplify
2 divided by 2=1
1240 divided by 2=620 <span />