collect information about robotic surgery add following point 1) year of invention 2) first country to perform 3) equipment used4) advantages and disadvantages
Answers
Answer:
AnsWer :
x = - 1/5.
y = 12/5.
Solution :
We have, Pair of Linear Equation.
Let,
\tt \dagger \: \: \: \: \: 3x + y = 7. \: \: \: \: \: - (1)†3x+y=7.−(1)
\tt \dagger \: \: \: \: \: x + 2y = 2. \: \: \: \: \: - (2)†x+2y=2.−(2)
★ Let Apply Substitution Method.
Taking Equation, ( 2 )
\tt : \implies x + 2y = 2.:⟹x+2y=2.
\tt \dagger \: \: \: \: \: x = 2 - 2y \: \: \: \: \: - (3)†x=2−2y−(3)
Now, Putting the value of x In Equation ( 1 )
\tt : \implies 3x + y = 7.:⟹3x+y=7.
\tt : \implies 3 \times (2 - 2y) + y = 7.:⟹3×(2−2y)+y=7.
\tt : \implies 6 - 6y + y = 7.:⟹6−6y+y=7.
\tt : \implies - 5y = 7 - 6.:⟹−5y=7−6.
\tt : \implies y = \dfrac{ - 1}{5}.:⟹y=
5
−1
.
Now, Putting the value of y in Equation ( 3 ) We get.
\tt : \implies x = 2 - 2y.:⟹x=2−2y.
\tt : \implies x = 2 - 2 \times ( \dfrac{ - 1}{5}) .:⟹x=2−2×(
5
−1
).
\tt : \implies x = 2 + \dfrac{2}{5}.:⟹x=2+
5
2
.
\tt : \implies x = \dfrac{10 + 2}{5} .:⟹x=
5
10+2
.
\tt : \implies x = \dfrac{12}{5} .:⟹x=
5
12
.
Therefore, the value of x is -1/5 and y = 12/5.
Answer:
Percentage of Copper = 82.5%
Total Parts of Alloy = 7+33 => 40
% of Zinc = \begin{gathered}\sf{\dfrac{7}{40}\times 100 = \dfrac{7}{2}\times5=17.5\%}\\\end{gathered}
40
7
×100=
2
7
×5=17.5%
% of Copper = \begin{gathered}\sf{\dfrac{33}{40}\times100=\dfrac{33}{2}\times5=82.5\%}\\\end{gathered}
40
33
×100=
2
33
×5=82.5%
Therefore, the total percent adds up to 100%.
So,
% of Zinc = 17.5%
% of Copper = 82.5%
Hope it helps u