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2 years ago

PLEASE HELP!!! PLEASE SHOW ALL OF YOUR WORK!!!

Mathematics

2 answers:

Elza [17]2 years ago

8 0

The answer is c bc I just know

Korolek [52]2 years ago

5 0

Your Answer: C

Why? It’s simple and easy

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The length of a rectangle envelope is 2 1/2 times its width. A plastic band surrounds the front and back of the envelope to secu

Andreas93 [3]

Answer:

Length of the envelope = 14

Width of the envelope = 5.6

Step-by-step explanation:

Let the width of the rectangle be x

Then the length of the rectangle will be $2\frac{1}{2} \times x$

Also the length of the plastic band to cover the front and back of the envolpe = $39\frac{3}{8}$

To cover one side th band required is

=> $\frac{39\frac{3}{8}}{2}$

=> $\frac{\frac{315}{8}}{2}$

=> ${\frac{315}{16}$

=>39.4

We know that the perimeter of the rectangle is

=> 2( L + B) = ${\frac{39.4}{2}$

=> 2( $2\frac{1}{2} \times x + x$ ) = 19.7

=> 2( $\frac{7}{2}x) = 19.7$

=> $3.5x = 19.7$

=> $x = \frac{19.7}{3.5}$

=> $x = 5.6$

Now length of the envelope =

=> $2\frac{1}{2} \times x$

=> $2.5 \times 5.6$

=> 14

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2 years ago

Evaluate |15-15| If you could also explain it to me I’d appreciate.

IRISSAK [1]

your answer is 0

Step-by-step explanation:

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2 years ago

Factorise fully 9b-3b²

Schach [20]

3b(3-b) is the answer

Step by step explanation : take out the most common factor which is 3b

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Dmitriy789 [7]

Answer:

C.1/2

Step-by-step explanation:

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2 years ago

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Alona [7]

The Answer Is Negative 3

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