Junghune N. answered • 01/29/18
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Providing Strategies to Solve Problems in Math and Science
We know the length is 3 inches longer than its width, so let's set w = the rectangle's width and w + 3 = the rectangle's length.
We know that the perimeter of the rectangle is 62 inches, so we just add up the two lengths and the two widths and set that equal to 62 inches as shown below:
2w + 2(w+3) = 62 inches
I think you can take it from here :)
We know that the perimeter of the rectangle is 62 inches, so we just add up the two lengths and the two widths and set that equal to 62 inches as shown below:
2w + 2(w+3) = 62 inches
I think you can take it from here :)
Junghune N.
Starting with the equation I wrote above: 2w + 2(w+3) = 62 inches, we can solve for w to find the rectangle's width as shown below:
2w + 2(w+3) = 2w + 2w + 6 = 4w + 6 = 62 inches.
4w = 56 inches
w = 14 inches.
Since we know that the length is 3 inches longer than the width, just add 3 inches to w to get the rectangle's length of:
w + 3 = 14 inches + 3 inches = 17 inches.
Let's check our work:
2*14 inches + 2 * 17 inches = 28 inches + 34 inches = 62 inches. Check.
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01/29/18
Abigail S.
01/29/18