Question

The length of a rectangle is 2 times the width. If the perimeter is to be less than 96 meters. What are the possible

values for the width? (Use w as the width)

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Enter your answer using inequality notation. Example: 3 <=w<4

Use or to combine intervals. Example: w< 2 or w >= 3

Enter all real numbers for solutions of that type

Enter each value as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 243,

5+4)

Enter DNE for an empty set. Use oo to enter Infinity.

Answer 1

W>16

Explanation:

The formula for calculating the perimeter of a rectangle:

P = 2L+2W

L is the length of the rectangle

W is the width of the rectangle:

Given

P = 96m

If the length of a rectangle is 2 times the width, then L = 2W

Substitute into the formula:

Since the perimeter is less than 96m

96 < 2(2W)+2W

96 < 4W+2W

96 < 6W

Divide both sides by 6:

96/6 < 6W/6

16 < W

W>16

Hence the possible values of the width are all values greater than 16.