The triangles are similar because the one on the left is just twice as big as the one on the right.
By solving the linear equation it can be obtained that
The value of x is 2
What is a linear equation?
At first it is important to know about equation
Equation shows the equality between two algebraic expressions by connecting the two algebraic expressions by an equal to sign.
A one degree equation is known as linear equation.
The given linear equation is
0.3 = 0.5x - 0.7
0.5x = 0.3 + 0.7
0.5x = 1
x = 
x = 2
The solution of this linear equation is x = 2
To learn more about linear equation, refer to the link-
brainly.com/question/28732353
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Answer: The density of a certain material is such that it weighs 9 pounds per cubic foot of
16.41, 16.42, 16.43. At this rate, there are infinite possibilities.