If Mr. arenth wants to put new carpeting in the room shown, how many square feet should he order L= 14ft. W = 6c-8ft. L= 5+3c ft
2 answers:
Answer:
140 sq. ft
Step-by-step explanation:
Given information: L= 14ft. W = 6c-8ft. L= 5+3c ft.
Equate the values of length.
Subtract 5 from both sides.
Divide both sides by 3.
The value of c is 3.
The width of the carpet is
The width of the carpet is 10 ft.
The area of a rectangle is
The area of carpet is
Therefore, Mr. arenth should order carpet of 140 sq. feet carpet.
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Keywords:
<em>equation, operations, equivalent, binomial, square root </em>
For this case we have an equation in which we must apply operations to rewrite it in an equivalent way. We must start by raising both sides of the equation to the square. Thus, we eliminate the square root of the left side of equality and finally solve the binomial of the right side of equality.
So we have:
By definition:
Thus, is equivalent to
Answer:
Option D