Answer:
5 chickens, 20 goats
Step-by-step explanation:
We can set up two equations and use substitution
There are 25 total goats and chickens, so
![G + C = 25](https://tex.z-dn.net/?f=G%20%2B%20C%20%3D%2025)
Goats have 4 feet and chickens have two, so
![4G + 2C = 90\\](https://tex.z-dn.net/?f=4G%20%2B%202C%20%3D%2090%5C%5C)
By solving for G in the first equation,
![G = 25 - C\\](https://tex.z-dn.net/?f=G%20%3D%2025%20-%20C%5C%5C)
We can now use substitution,
![G = 25 - C\\4G + 2C = 90\\4(25 - C) + 2C = 90\\100 - 4C + 2C = 90\\-2C = -10\\C = 5\\](https://tex.z-dn.net/?f=G%20%3D%2025%20-%20C%5C%5C4G%20%2B%202C%20%3D%2090%5C%5C4%2825%20-%20C%29%20%2B%202C%20%3D%2090%5C%5C100%20-%204C%20%2B%202C%20%3D%2090%5C%5C-2C%20%3D%20-10%5C%5CC%20%3D%205%5C%5C)
We have 5 chickens, so we have 20 goats.
Let's double check:
![5(2) + 20(4) = 90\\10 + 80 = 90\\90 = 90\\](https://tex.z-dn.net/?f=5%282%29%20%2B%2020%284%29%20%3D%2090%5C%5C10%20%2B%2080%20%3D%2090%5C%5C90%20%3D%2090%5C%5C)
It checks out!
Answer:
N=1
Step-by-step explanation:
Answer:
The final amount after decreasing upto 2 DP is 771.18
Step-by-step explanation:
Amount given is 943
13% of ammount will be = 943 x 13%
=![943\times (\frac{13}{100} )\\943 \times 0.13\\122.59](https://tex.z-dn.net/?f=943%5Ctimes%20%28%5Cfrac%7B13%7D%7B100%7D%20%29%5C%5C943%20%5Ctimes%200.13%5C%5C122.59)
Decreasing 13% from 943 we get = 943-122.59
=820.41
Now the ammount = 820.41
for finding final amount
find
6% of amount (820.41) we get = 820.41x 6%
=![820.41\times( \frac{6}{100} )\\820.41\times 0.06\\49.23](https://tex.z-dn.net/?f=820.41%5Ctimes%28%20%5Cfrac%7B6%7D%7B100%7D%20%29%5C%5C820.41%5Ctimes%200.06%5C%5C49.23)
Decreasing 6% from 820.41 we get final amount= 820.41- 49.23
=771.18
so the final amount is 771.18
Keywords: Percentage
Learn more about percentage at:
#learnwithBrainly
Answer:
C and E
Step-by-step explanation:
Expressions does not contain any equal or less than greater than sign
So C and E are the right answers
I think the kite is at a 45 degree angle