anonymous
  • anonymous
The area of a rectangle must be at least 153 square feet. If the length is 9 feet, find the minimum for the rectangle's width.
Algebra
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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eSpeX
  • eSpeX
How do you find the area of a rectangle?
anonymous
  • anonymous
Length times width
eSpeX
  • eSpeX
So \(l\times w=area\), fill in what you know.

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More answers

anonymous
  • anonymous
So it would be 9 times x right since we don't know the length
eSpeX
  • eSpeX
Exactly. That would also be equal to 153 since they give you the area.
anonymous
  • anonymous
So how do you find x?
eSpeX
  • eSpeX
9x=153, how do you isolate x?
anonymous
  • anonymous
I would divide right
eSpeX
  • eSpeX
Indeed you would, and your answer would be?
anonymous
  • anonymous
Hmm well I don't have a calculator with me so I'm stuck
eSpeX
  • eSpeX
How many times does 9 go into 15?
eSpeX
  • eSpeX
|dw:1371517058529:dw|
anonymous
  • anonymous
0
eSpeX
  • eSpeX
Since 15 is larger than 9, I would say that your answer is incorrect. In my drawing, 9 goes into 1, 0 times.
anonymous
  • anonymous
Aw I thought I said 0
eSpeX
  • eSpeX
You did say 0, but the question was how many times can 9 go into 15.
anonymous
  • anonymous
Yea I said 0 cause I looked at your drawing so it's 1
eSpeX
  • eSpeX
Right. |dw:1371517340009:dw| How many times will 9 go into 63?
anonymous
  • anonymous
I think 6
eSpeX
  • eSpeX
What's 9*5?
anonymous
  • anonymous
45
eSpeX
  • eSpeX
Right, plus 9?
anonymous
  • anonymous
54
eSpeX
  • eSpeX
Yes, so you just determined that 9 * 6 = 54. Now, plus 9 again?
anonymous
  • anonymous
Aw it goes into it 7 times
eSpeX
  • eSpeX
Exactly, and all without a calculator. :)
eSpeX
  • eSpeX
So you have|dw:1371517898863:dw| So your 'w' value for this rectangle is?
anonymous
  • anonymous
7
eSpeX
  • eSpeX
?
anonymous
  • anonymous
that's the w value right?
eSpeX
  • eSpeX
Since the area is l*w=153, and you just said that 9*7=63, I'm going to say that w does not equal 7.
anonymous
  • anonymous
Aw ok so we're not done yet
eSpeX
  • eSpeX
No, we're done, you just need to look closer. :D
anonymous
  • anonymous
Alright so you subtracted 63 from itself and got 0 now what's next
eSpeX
  • eSpeX
We hit 0, we're done. So what was the answer to 153 divided by 9?
anonymous
  • anonymous
63
eSpeX
  • eSpeX
|dw:1371518347096:dw|
anonymous
  • anonymous
oh it's 17... I knew that
eSpeX
  • eSpeX
I'm sure you did. :) So your rectangle is going to be l=9 and w=17
anonymous
  • anonymous
Alright thanks again but I also have another question
eSpeX
  • eSpeX
Okay, you going to make a new post or do it here?
anonymous
  • anonymous
New post
eSpeX
  • eSpeX
Okay

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