Find the length of the rectangle in feet.
Answer to Problem 53STP
Choice B is correct answer.
Explanation of Solution
Given:
The length of a rectangle is 3 times its width. The area of the rectangle is 75 square feet.
Concept Used:
Let x be the width of the rectangle.
The length of a rectangle is 3 times its width.
The length of the rectangle is 3x.
The equation:
Calculation:
Let x be the width of the rectangle and 3x be the length of the rectangle.
Width cannot be negative. x = 5,
The length of the rectangle is 3x = 15 feet.
Choice B is correct answer.
Thus, Choice B is correct answer.
Chapter 9 Solutions
Algebra 1
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