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Problem 38 Easy Difficulty

Area of a Rectangle A rectangle has an area of 39 square feet. If the length is 13 feet, what is the width?

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Prealgebra

Chapter 1

Whole Numbers

Section 8

Area and Volume

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Video Transcript

Okay, So our length is our wit. Plus there can. Yours are with w, and then a perimeter is 82 yards. So we need to fund what are length and with or so it's dimensions. Now, I want to go ahead with Apply at both of these by two because you know, you got your length plus dealing explicitly with coast with or two times l and then two times w So this isn't Give me to W plus 26 then to w so I'm gonna add these together t equal into this is going to before it over u equals 20 for over U plus 26 minus 80 equals 82. So we're gonna subtract 26 from both sides, and this is going to give us Ford over u equals 56. And then we're gonna divide out four, which gives us 14. So w is equal to 14. So our wit is equal to 14 Now, our length we have to pull in here, so 14 plus 13 is 27. So I'm gonna such a to l for the now we're gonna multiply 27 butts who, plus 14 but two So This is 28 27 times two is 54 54 plus 28 is indeed 82.

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Charles P. McKeague

Prealgebra

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Prealgebra

Charles P. McKeaguePrealgebra

Charles P. McKeague

Prealgebra