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weqwewe [10]
4 years ago
13

100+50x=150+30x please answer thi and thank you

Mathematics
2 answers:
Anna [14]4 years ago
4 0

Subtract 100 from both sides

50x = 150 + 30x - 100

Simplify 150 + 30x - 100 to 30x + 50

Subtract 30x from both sides

50x - 30x = 50

Simplify 50x - 30x to 20x

20x = 50

Divide both sides by 20

x = 50/20

Simplify 50/20 to 5/2

<u>x = 5/2</u>

<em>In decimal: 2.5</em>

Andru [333]4 years ago
3 0

Answer:

5/2

Step-by-step explanation:


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The length of a rectangle is 5 cm more than its width. The perimeter is 82 cm. Find the length of the rectangle.
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We will represent the length of the rectangle as l and the width as w.


From this problem, we can say l = w + 5. We can also deduct an equation from the second sentence:

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\boxed{w = 18}


Using this value for w, we can find l:

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4 years ago
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Step-by-step explanation:

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Let ƒ(x) = x + 1 and g(x) = 5x. Evaluate the composition (ƒ ∘ g)(–1). Question 2 options: A) (ƒ ∘ g)(–1) = 6 B) (ƒ ∘ g)(–1) = –4
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Answer:

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Step-by-step explanation:

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