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In linear equation, 14 teachers teach at both schools.
What in mathematics is a linear equation?
- A linear equation is a first-order (linear) term plus a constant in the algebraic form y=mx+b, where m is the slope and b is the y-intercept.
- The variables in the preceding equation are y and x, and it is occasionally referred to as a "linear equation of two variables."
- a first-degree algebraic equation with the variables y = 4x + 3 or some similar expression (that is, raised only to the first power).
- Such an equation has a straight line for its graph.
Let
A = Albers Elementary School
B = Bothel Elementary School
According to the question:
n(A) = 44, n(B) = 74, n(A U B) = 87.
Using the union formula we get
n(A U B ) = n(A) + n(B) - n ( A ∩ B )
51 = 45 + 20 - n ( A ∩ B )
n ( A ∩ B ) = 65 - 51
n ( A ∩ B ) = 14
So, 14 teachers teach at both schools.
Learn more about linear equation
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