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katrin [286]
2 years ago
10

Solve multi step equations 2(4-d+2d)=12

Mathematics
2 answers:
Naya [18.7K]2 years ago
5 0
Combine like terms inside parenthseses
2(4+d)=12
divide both sides by 2
4+d=6
mnus 4 both sides
d=2
natka813 [3]2 years ago
4 0
2(4-d+2d)=12
8-2d+4d=12
8+2d=12
2d=4
d=2
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danielle did not complete 15 of her 200 assignments last year. Kim said that is 0.075 of her assignments and Kelly said it is 0.
Alona [7]

Answer:

Kim

is correct

Step-by-step explanation:

Here, we want to know who is correct between Kim and Danielle

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To find what is not completed, we divide 15 by 200

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15/200 = 0.075

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Perimeter of a rectangle is 52 feet. If the length is 10 less than 2 times the width, what is the width?
ella [17]

Step-by-step explanation:

Let the width be x feet.

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2(2x - 10 + x) = 52 \\ 2(3x - 10) = 52 \\ \therefore \:  3x - 10 =  \frac{52}{2} \\ \therefore \:  3x - 10 = 26\\ \therefore \:  3x = 26 + 10\\ \therefore \:  3x = 36 \\ \therefore \:  x =  \frac{36}{3} \\ \therefore \:  x =  12 \\ \purple{ \boxed{\therefore \: width \: of \: rectangle = 12 \: feet }}

6 0
3 years ago
What is the value of x in the equation<br> 4z +16<br> 12<br> = х - 4?
Serhud [2]
<h3>Solution:</h3>

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<h3>Answer:</h3>

x = 8

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