Answer:
207.68 m
Step-by-step explanation:
From the diagram,
ΔDEC is similar to ΔFGC
Therefore,
(DE)/(FG) = (DC)/(FC).............. Equation 1
make line DE the subject of the equation
DE = [(DC)(FG)/(FC)]................ Equation 2
From the diagram,
Given: DC = 190 m, FG = 142.1 m, FC = 130 m
Substitute these values into equation 2
DE = (190×142.1/130)
DE = 207.68 m
Hence the distance across the lake is 207.68 m
In this case, we must analyze the question to find the solution.
Step 01:
equation one variable vs system of equations two variables = ?
Step 02:
In an equation with one variable, we must only apply the algebraic rules to find its value.
For systems of equations, we have different methods to solve them.
And it is possible to write the equations as a function of one variable, and then substitute in the other equation and thus find the solution.
Therefore, it is comparable to solving one variable equation.
That is the answer.
36%
as a fraction is: 9/25 in its simplest form
as a decimal is: 0.36
hope my answer helped :)
Answer:
There is no variable so -3 therefore cannot be a solution to this.
