I believe it is that your supposed to add the roots before finding the square root
Answer:
26=9s+4s
13s=26
s=26/13
s=2
Step-by-step explanation:
hope it is helpful for you if it is follow me
The value of c is 5 units.
Step-by-step explanation:
Given,
WY = a = 4
ZY = b = 3
As WYZ is forming a right angle triangle, therefore, we can use pythagorean theorem to find the value of c
![a^2+b^2=c^2\\(4)^2+(3)^2=c^2\\16+9=c^2\\c^2=25](https://tex.z-dn.net/?f=a%5E2%2Bb%5E2%3Dc%5E2%5C%5C%284%29%5E2%2B%283%29%5E2%3Dc%5E2%5C%5C16%2B9%3Dc%5E2%5C%5Cc%5E2%3D25)
Taking square root on both sides
![\sqrt{c^2}=\sqrt{25}\\c=5](https://tex.z-dn.net/?f=%5Csqrt%7Bc%5E2%7D%3D%5Csqrt%7B25%7D%5C%5Cc%3D5)
The value of c is 5 units.
Keywords: triangle, square root
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Answer:
-6,6
Step-by-step explanation:
Her niece sees 15 goats.
Step-by-step explanation:
Given,
Total animals on barn = 40
Total legs counted by May's niece = 110
A goat has 4 legs and chicken has 2 legs.
Let,
x represent the number of goats
y represent the number of chicken
x+y=40 Eqn 1
4x+2y=110 Eqn 2
Multiplying Eqn 1 by 4
![4(x+y=40)\\4x+4y=160\ \ \ Eqn\ 3](https://tex.z-dn.net/?f=4%28x%2By%3D40%29%5C%5C4x%2B4y%3D160%5C%20%5C%20%5C%20Eqn%5C%203)
Subtracting Eqn 2 from Eqn 3
![(4x+4y)-(4x+2y)=160-110\\4x+4y-4x-2y=50\\2y=50](https://tex.z-dn.net/?f=%284x%2B4y%29-%284x%2B2y%29%3D160-110%5C%5C4x%2B4y-4x-2y%3D50%5C%5C2y%3D50)
Dividing both sides by 2
![\frac{2y}{2}=\frac{50}{2}\\y=25](https://tex.z-dn.net/?f=%5Cfrac%7B2y%7D%7B2%7D%3D%5Cfrac%7B50%7D%7B2%7D%5C%5Cy%3D25)
Putting y = 25 in Eqn 1
![x+25=40\\x=40-25\\x=15](https://tex.z-dn.net/?f=x%2B25%3D40%5C%5Cx%3D40-25%5C%5Cx%3D15)
Her niece sees 15 goats.
Keywords: linear equation, elimination method
Learn more about elimination method at:
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