Question

What is the height of the table ☝️☝️?????​

Answer 1

Answer:

50 Cm is the answer of your question

hope it helps you

Answer 2

Topic: Linear equation

Solution

Let the height of the table be $h$, and let the height of egg, chicken, and chick be $x,y,z$ respectively.

Then we have three equations.

① $h+x=60$

② $h-z+y=60$

③ $h-x-y+z=45$

Adding all three equations,

$\implies 3h=165$

$\implies \boxed{h=55}$ (cm)

More Information

Substituting $h=55$ into equation ① $h+x=60$,

$\implies \boxed{x=5}$ (cm)

Substituting into ② $h-z+y=60$,

$\implies y-z=5$

Substituting into ③ $h-x-y+z=45$,

$\implies -y+z=-5$

We see that the equation has infinitely many pairs of $y,z$. This happens because it is a system equation of four equations in three variables.

More Question Section

Figure out the value of  $x,y,z$ if,

① $x+y=6$

② $y+z=8$

③ $z+x=10$

(Answer Keys) Try adding all equations and divide by 2.

$\implies 2x+2y+2z=24$

$\implies x+y+z=12$

Then subtract each equation from $x+y+z=12$.

(Answer) $x=4,y=2,z=6$