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olga_2 [115]
3 years ago
5

the length of a rectangle is two feet greater then twice its width if the primeter is 25 find the width

Mathematics
1 answer:
Mademuasel [1]3 years ago
7 0

Answer:

Step-by-step explanation:

Perimeter is simply length + width. They gave us that the length is 2 feet plus 2 times the width:

25=(2w+2)+W

Subtract 2 from both sides to get 23 = 2w + w

Combine like terms to get 23 = 3w

Divide by 3 to get w=7 \frac{2}3} feet

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Simplify the expression -3 divided by -2/5.
Romashka [77]
You can either convert -3 into a fraction, or convert -2/5 into a decimal so you can solve this.
If you decide to convert -3, into a fraction, it would be -3/1, and you'd have to multiply that by the reciprocal of -2/5.
So, you'd have -3/1(-5/2)=15/2, which can be simplified to 7 1/2.
If you decide to convert -2/5 into a decimal, you would get -0.4. You would then divide -3 by -0.4, which is equal to 7.5.
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3 years ago
Which value of K will make x^2-1/4x+k a perfect square trinomial?
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3 years ago
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7 0
3 years ago
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8 0
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Angelina_Jolie [31]

Answer:

<h3>x = -3</h3>

Step-by-step explanation:

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8 0
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