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WARRIOR [948]
3 years ago
11

The length of a rectangular picture frame is 4 inches less than three times the width. The perimeter is 136 inches. Find the len

gth and the width.
Mathematics
1 answer:
natulia [17]3 years ago
6 0

Answer:

The width of the rectangle is 18 inches, and the length is 50 inches

Step-by-step explanation:

We can designate a variable, x, to represent the width of the rectangle.  To represent the length and widths of the rectangle, we can say that the length is 3x-4 and the width is just x.  We can then write an equation for the perimeter and solve:

2(3x-4) + 2x = 136

6x - 8 + 2x = 136

8x - 8 = 136

8x = 144

x = 18

To calculate the length

(3x - 4)

3(18) - 4 = 50 in

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